Foraminifera of the 

North Pacific Ocean 

GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 

Foraminifera of the 

North Pacific Ocean 

By PATSY B. SMITH 

GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 

A system.atic study of Foraminifera 

from lat 25° to 55° N. 

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1973 
UNITED STATES DEPARTMENT OF THE INTERIOR 

ROGERS C. B. MORTON, Secretary 

GEOLOGICAL SURVEY 

V. E. McKelvey, Director 

Library of Congress catalog-card No. 72-600385 

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 

Price: Paper cover- 85 cents, domestic postpaid; 60 cents, GPO Bookstore. Stock No. 2401-00295 
Abstract ----------------------------------------

Introduction ------------------------------------- Acknowled,gments -- ______ -------- __ -- _____ -- __ ---

Previous work -----------------------------------

Procedure --------------------------------------- Environment of the North Pacific -----------------

Foraminifera in grab samples and in top 2 centimeters 

of cores --------------------------------------- Foraminifera below top 2 centimeters of cores ------ Systematic catalog ______________ -- ____________ -- _ 

Family Astrorhizidae -------------------------

Genus Rhabdammina ---------------------

Genus Rhizammina ----------------------- Genus M arsipella _____ ----- ___________ -- _ 

Genus Bathysiphon ----------------------

Genus Jaculella --------------------------

Genus Hyperammina ---------------------

Family Saccamminidae -----------------------

Genus Psammosphaera -------------------

Genus Saccammina ----------------------

Genus Thurammina ----------------------

Family Ammodiscidae ------------------------

Genus Glomospira ------------------------

Family Hormosinidae -------------------------

Genus Hormosina ------------------------

Genus Reophax --------------------------

Family Lituolidae ----------------------------

Genus Adercotryma ----------------------

Genus Cyclammina -----------------------

Genus Alveolophragmium -----------------

Genus Ammobaculites --------------------

Genus Ammomarginulina -----------------

Genus Placopsilina -----------------------

Family Textulariidae ------------------------

Genus Spiroplectammina ------------------

Genus Bigenerina ------------------------

Family Trochamminidae ----------------------

Genus Trochammina ---------------------

Genus Cystammina -----------------------

Genus Tritaxis --------------------------

Family Ataxophragmiidae ---------------------

Genus Globotextularia --------------------

Genus Dorothia --------------------------

Genus Eggerella -------------------------

Family Nubeculariidae -----------------------

Genus Ophthalmidium --------------------

CONTENTS 

Page 

1 

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4 

4 

6 

6 

7 

11 

12 

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12 

12 

13 

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13 

13 

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14 

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14 

15 

16 

16 

16 

16 

16 

16 

17 

17 

18 

18 

18 

18 

18 

18 

18 

18 

Systematic catalog-Continued 

Family Miliolidae ----------------------------

Genus Quinqueloculina --------------------

Genus Pyrgo ----------------------------

Genus Miliolinella ------------------------

Genus Ammomassilina -------------------

Family Turrilinidae --------------------------

Genus Buliminella ------------------------

Family Bolivinitidae --------------------------

Genus Bolivina --------------------------

Genus Bulimina --------------------------

Genus Globobulimina ---------------------

Family Uvigerinidae -------------------------

Genus Uvigerina -------------------------

Genus Angulogerina ---------------------

Family Discorbidae ---------------------------

Genus Epistominella ------------ _---------

Family Elphidiidae --------------------------

Genus Elphidium -------------------------

Genus Elphidiella ------------------------

Family Globorotaliidae -----------------------

Genus Globorotalia -----------------·------

Family Globigerinidae _ ----------------------

Genus Globigerina -----------------------

Genus Candeina --------------------------

Family Cibicididae ________ ---- _ -- __ - _ -- _-----

Genus Cibicides --------------------------

Family Cassidulinidae ------------------------

Genus Cassidulina -----------------------

Genus Ehrenbergina ----------------------

Family Involutinidae -------------------------

Genus lnvolutina -------------------------

Family N onionidae __ --- ____ ------------------

Genus Nonion ----------------------------

Genus Nonionella -------------------------

Genus Pullenia --------------------------

Family Alabaminidae -------------------------

Genus Gyroidina -------------------------

Family Anomalinidae -------------------------

Genus Anomalina ------------------------

Genus Cibicidoides ------------------------

Genus Melonis ---------------------------

Family Ceratobuliminidae ---------------------

Genus Hoeglundina ----------------------- References cited ________________________________ _ 

Index -------------------------------------------

III 

Page 

19 

19 

19 

19 

19 

19 

19 

19 

19 

19 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20 

20 

21 

21 

21 

21 

21 

21 

21 

21 

22 

22 

22 

22 

22 

22 

22 

22 

22 

22 

23 

23 

23 

23 

23 

25 
IV CONTENTS 

ILLUSTRATIONS 

[Plates 1-4 follow index] 

PLATES 1-4. Illustrations of Foraminifera. 

Page 

FIGURE 1. Location of 1961 Pioneer stations ----------------------------- 4 

TABLE 

2. Distribution of marine deposits in the North Pacific Ocean ------ 4 

3. Distribution of calcium carbonate in the ocean deposits ---------- 5 

4. Diagram showing depth of water for stations along long. 160° W _ 6 

5. Diagram showing depth of water for stations along long. 180° W _ 6 

TABLES 

1. Position, depth, and content of core samples -------------------

2. Distribution of Foraminifera in the North Pacific --------------

Page 

1 

6 
FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

By PATSY B. SMITH 

ABSTRACT 

In 1961, 33 cores were collected by the U.S. Coast and 

Geodetic Survey ship Pioneer. The Foraminifera of these 

cores, Holocene and older, indicate a wide faunal diversity. 

Most are arenaceous. In the deep parts of the central North 

Pacific, faunas are poor, both in number of specimens and 

species, but in the Aleutian Trench and on the adjacent 

island shelf, they are rich. A systematic catalog of the 85 

species found accompanies the descriptions and information 

on distribution. 

INTRODUCTION 

During 1961, core samples were obtained by the 

U.S. Coast and Geodetic Survey ship Pioneer. Samples were taken between lat 25° and 55° N. and long 

160° to 180° W. Water depth ranges from 76 to 

7,230 meters (table 1). Samples were taken primarily along two north-south traverses through the midPacific that cross the Aleutian Trench at the north. 

Distribution of samples is shown in figure 1. 

TABLE 1.-Position, depth, and content of core samples and the abundance of constituents, estimated in perc,ent 

[C, core-catcher sample; other coarse organic fragments, estimated abundance in percent, given in parentheses] 

Location Ocean Depth Other coarse Core depth in core <0.07 Foram- Diatoms Radio- organic Coarse 

Lat N. Long. W. (m) (em) mm inifera Ia ria fragments residue 

P-1-61 57°19' 155°20' 230 0-2 95 <1 <1 ----------------- Fine sand. 

2-3 95 <1 <1 ----------------- Do. 

11-12 95 ----------------- Ash. 

21-22 9'6 <1 ----------------- Do. 

31-32 96 <1 ----------------- Fine sand, ash. 

41-42 98 <1 <1 ----------------- Ash. 

c 98 <1 <1 ----------------- Sand, ash. 

3-61 54°33' 157°24' 2,090 0-6 90 1 <1 <1 ----------------- Fine sand. 

4-61 55°31' 156°16' 245 0-2 80 1 ----------------- Poorly sorted sand. 

2-14 60 <1 ----------------- Granule to medium 

sand. 

14-26 50 <1 ----------------- Do. 

26--29 50 3 ----------------- Same and shell, 

wood. 

29-32 40 3 ----------------- Granule to fine sand, 

shell. 

41-42 50 2 ----------------- Do. 

51-52 60 1 ----------------- Do. 

61-62 50 1 ----------------- Coarse to 

shell. 

fine sand, 

71-72 60 <1 <1 ----------------- Do. 

81-82 50 3 ----------------- Do. 

91-92 60 2 ----------------- Do. 

101-102 60 2 ----------------- Do. 

c 50 5 ----------------- Pebbles to fine sand. 

5-61 55°23' 155°01' 1,980 0-2 98 <1 <1 ----------------- Fine sand. 

11-12 95 <1 4 ----------------- Do. 

21-22 95 3 <1 Sponge (1) ------ Do. 

c 95 <1 3 ___ do ------------ Do. 

6-61 55°23' 154°27' 819 0-2 75 <1 <1 Sponge ( <1) ----- F.ine sand, ash. 

53-54 75 3 Sponge (2) ------ Ash. 

7-61 56°25' 155°36' 76 0-1 95 <1 <1 Sponge (<1) ---- Fine sand. 

6--7 25 2 <1 <1 ----------------- Do. 

8-61 55°36' 158°23' 150 0-1 95 <1 1 Sponge ( <1) ----- Fine sand. 

10-11 50 <1 <1 Sponge (3) ------ Ash, some fine sand. 

20-21 60 <1 <1 Sponge (1) ------ Do. 

30-31 60 <1 <1 Sponge (3) ------ Do. 

40-41 50 <1 <1 Sponge (1) ------ Do. 

50-51 50 <1 <1 Sponge ( <1) ----- Do. 

60-61 75 <1 <1 Sponge (1) ------ Do. 

70-71 75 <1 <1 Sponge ( <1) ----- Do. 

80-81 75 1 <1 Spong·e (1) ------ Do. 

90-91 25 2 Sponge (<1) Ash. 

100-101 25 2 ___ do ------------ Do. 

See footnotes at end of table. 

1 
2 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

TABLE 1.-Position, depth, and content of core samples and the abundance of constituents, estimated in percent-Continued 

Core 

P-9-61 

10-61 

11-61 

12-61 

13-61 

16-61 

19-61 

22-61 

23-61 

25-61 

26-61 

27-61 

29-61 

32-61 

33-61 

35-61 

38-61 

Location 

Lat N. 

25°55' 

30°06' 

32°22' 

36°50' 

Long. W. 

161°33' 

177°34' 

177°30' 

177°20' 

177°30' 

See footnotes at end of table. 

Ocean 

depth 

(m) 

121 

4,170 

5,560 

6,560 

7,000 

2,410 

4,430 

4,810 

4,760 

5,120 

5,210 

5,290 

4,810 

5,400 

5,230 

5,530 

5,610 

Depth 

in core 

(em) 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

70-71 

0-1 

9-13 

0-1 

10-11 

21-22 

31-32 

35-36 

c 

0-1 

10-11 

20-21 

0-1 

10-11 

20-21 

30-31 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

0-1 

10-11 

20-21 

30-31 

0-1 

10-11 

20-21 

0-1 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

70-71 

80-81 

0-1 

0-1 

0-1 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

0-1 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

70-71 

<0.07 Foram- Diatoms RadioOther coarse organic 

fragments 

Coarse 

mm inifera laria residue 

85 

30 

10 

10 

10 

10 

10 

20 

95 

95 

75 

90 

80 

90 

95 

95 

80 

90 

80 

75 

85 

80 

75 

80 

85 

85 

85 

85 

85 

90 

80 

70 

70 

80 

80 

95 

90 

60 

95 

99 

99 

99 

99 

99 

99 

99 

99 

99 

98 

95 

80 

80 

80 

80 

80 

80 

80 

80 

90 

90 

90 

90 

90 

95 

90 

90 

95 

95 

95 

95 

95 

95 

2 

20 

10 

10 

10 

15 

10 

10 

<1 

3 

<1 

<1 

<1 

5 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

1 

1 

20 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

2 

2 

15 

2 

7 

2 

<1 

1 

10 

5 

15 

20 

5 

10 

5 

5 

3 

3 

4 

4 

6 

3 

18 

10 

10 

8 

<1 

<1 

<1 

2 

<1 

<1 

<1 

<1 

<1 

<1 

1 

<1 

<1 

<1 

<1 

<1 

<1 

4 

<1 

<1 

<1 

<1 

<1 

<1 

<1 

----------------- Sand, poorly sorted. 

Sponge ( <1) ----- Do. 

Shell ( 40) Do. ___ do ------------ Do. ___ do ------------ Do. 

Shell (35) ------- Do. 

Shell (30) ------- Do. Shell (35) _______ Do. 

2 ----------------- Ash, fine sand. 

1 ----------------- Do. 

2 --------- -------- Fine sand. 

2 ----------------- Do. 

8 ----------------- Do. 

2 --------- -------- Ash, fine sand. 

<1 ----------. ------ Do. 

1 ----------------- Do. ----------------- Fine, sand. 

<1 ----------------- Ash. 

1 ---------- -------- Do. 

2 ----------------- Ash. 3 Sponge (2) Do. 

3 ___ do ------------ Do. 

1 Sponge ( <1) _____ Do. 

1 --------- -------- Fine sand. 

Sponge ( 2) Do. ___ do ------------ Do. 

Sponge (4) ------ Do. ___ do ------------ Do. ___ do ------------ Do. Sponge (1) ______ Do. 

1 ----------------- 1 

1 

1 

<1 

<1 

1 

4 

18 

20 

20 

20 

20 

20 

20 

18 

8 

8 

8 

8 

8 

4 

4 

1 

1 

1 

1 

1 

1 

1 

Sponge ( 1) Ash. ___ do _ _.__________ Do. 

___ do ------------ Do. ----------------- Silt and fine sand. 

Sponge (2) Do. 

Sponge (1), broken Do. 

mollusks ( 1). 

Shells, bryozoans, and so forth. ----------------- Very fine sand. ----------------- Fine to medium 

Sponge ( <1) ____ _ 

___ do ------------ ___ do ------------

Sponge (1) 

___ do ------------ ___ do ------------ ___ do ------------ ___ do ------------ Sponge (<1) ___ do ------------

sand. 

Do. 

Do. 

Do. 

Do. 

Do. 

Do. 

Do. 

Medium to fine sand. 

Do. 

Do. 

Same, half ash. 

Do. 

Do. 

Do. 
INTRODUGTION 3 

TABLE 1.-Position, depth, and content oj core samples and the abundance of constituents, estimated in percent-Continued 

Location 

Core 

Lat N. 

Ocean 

depth 

(m) 

Depth 

in core 

(em) 

<0.07 Foram- Diatoms RadioOther coarse organic 

fragments 

Coarse 

Long. W. rom inifera laria residue 

P-40-61 48°06' 

52-61 43°47' 

56-61 39°30' 

64-61 30°16' 

69-61 23°30' 

161 °07' 

5,500 

7,230 

4,650 

5,000 

5,160 

5,400 

5,830 

5,830 

4,820 

1 Incompletely washed, few Foraminifera. 2 Incompletely washed, no Foraminifera. 

0-1 

10-11 

20-21 

30-31 

0-1 

10-11 

20-21 

30-31 

40-41 

0-1 

10-11 

17-18 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

0-1 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

70-71 

80-81 

0-1 

10-11 

20-21 

30-31 

40-41 

50-51 

60-61 

70-71 

80-81 

90-91 

100-101 

110-111 

120-121 

0-1 

10-11 

0-1 

10-11 

20-21 

30-31 

40-41 

75 

70 

70 

70 

75 

95 

98 

98 

80 

85 

90 

75 

50 

80 

80 

80 

80. 

80 

80 

90 

95 

95 

98 

98 

99 

99 

99 

99 

99 

85 

98 

98 

98 

98 

98 

98 

98 

98 

99 

99 

99 

99 

98 

98 

98 

98 

98 

Examination of faunas from the cores showed 

that, in general, species are sparsely represented but 

are diverse and mostly arenaceous. No new species 

are described. Sixty of the 85 species found were 

illustrated in the Challenger reports (Brady, 1884; 

Barker, 1960). The few calcareous specimens present in the deep cores were probably alive at the time 

of collection, even though not all were stained by 

rose bengal. The likelihood is not great that such 

specimens could survive for long after death in their 

calcite-undersaturated environment. 

1 

<1 

<1 

1 

2 

1 

<1 

1 

<1 

<1 

1 

<1 

<1 <1 

<1 

<1 

<1 <1 

<1 <1 

<1 

<1 

10 

3 

3 

5 

20 

2 

1 

1 

10 

10 

3 

8 

3 

1 

1 

1 

1 

1 

1 

<1 

1 

1 

<1 

<1 

<1 <1 

<1 

<1 

<1 

<1 

4 Sponge (1) ------ Coarse to fine sand. 

2 _____ ------------ Medium to fine sand. 

2 _____ ------------ Very coarse to fine 

sand. 

5 Sponge ( <1) ----- Sponge (>1) -----

Medium to fine sand. 

Ash. 

2 

1 

<1 

5 

<1 

2 

4 

8 

1 

1 

1 

1 

1 

8 

1 

1 

<1 

>1 

1 

1 

1 

1 

1 

<1 

1 

1 

1 

1 

1 

1 

___ do ------------ ___ do ------------ Ash. ___ do------------ Do. ___ do ------------ Fine sand. _________________ Fine sand. 

_________ -------- Ash. __ ___ ____ ________ Do. 

Sponge (2) ------ Ash, fine to granule. _________________ Ash, fine to very 

coarse. 

Do. 

Do. 

Do. 

Do. 

Do. 

Sponge ( >1) _____ Fine sand. 

___ do ------------ Do. ___ do ------------ Do. ___ do ------------ Do. _________ -------- Do. __ ___ ____ ________ Do. 

_________ -------- Do. __ ___ ____ ________ Do. __ ___ ____ ________ Do. 

_________________ Fine sand. 

Sponge (1) ___ do ------------ ___ do ------------ ___ do ------------- ___ do ------------- Sponge, fish 

bones (1). 

___ do ------------ Sponge (2) _____ _ 

----------------- Manganese(?) pellets. 

Do. _________ -------- Coarse sand. 

Do. 

1 <1 S~~g~-f<i)-~~~~~ Fine sand. 

<1 ___ do------------ Do. 

<1 ___ do------------ Do. <1 ___ do------------ Do. 

Table 1lists the position, depth of water, and percentage estimates of the constituents of the cores. 

Most of the material was finer than 0.07 millimeter 

and contained small percentages of Foraminifera, 

diatoms, Radiolaria, other organic fragments, and 

son1e inorganic residue. 

This paper is mainly a catalog of s·pecies present 

and their relative abundance. The systematic catalog includes as complete synonymies as possible, for 

many of the species have been described from rare 

occurrences and their systematic descriptions had to 
4 

• Core 

0 

Core-catcher or 

grab sample 

FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

20°"---l-----1-----

be assembled. Discussion of each species., its morphology, and distribution is included. The species are 

illustrated on plates 1-4. 

ACKNOWLEDGMENTS 

Credit is here given to Capts. William Dean, Horace Conerly, and Harley Nygren of the National 

Ocean Survey (formerly Coast and Geodetic Survey) 

for supervising the coring. George W. Moore of the 

U.S. Geological Survey logged and sampled the cores 

and collected the gra;b samples. 

PREVIOUS WORK 

Published records of bottom sediments and Foraminifera from the Pacific Oeean north of lat 20° N. 

are sparse. The Challenger reports include several 

samples from this area. The report of the seventh 

cruise of the Carnegie (Revelle, 1944) includes many 

more samples and also a comprehensive study of 

sediment type, the distribution of which is shown in 

figure 2. Figure 3, shoWiing distribution of CaC03, 

is taken from Lisitzen ( 1971). 

FIGURE !.-Location of 1961 Pioneer stations. 

Riedel and Funnell (1965) described several Tertiary cores from the area, and several reports of 

Tertiary faunas from the North Pacific (Bukry and 

others, 1971; Krashininnikov, 1971; Olson and Goll, 

1970) have been published as results of the deep-sea 

drilling project of the Glomar Challenger. 

EXPLANATION 

Terrigenous deposits 

Red clay 

Radiolarian ooze 

Diatl)m 

-ooze 

Globigerina 

- ooze 

FIGURE 2.-Distribution of marine deposits in the North Pacific Ocean (from Revelle, 1944). 
! 

-J 

0 

-J 

"' 

oo r ? .?4, ±&,?., ·@ / -~ W~\Xr, .C W'~l. PSJ ~lJ IIJY'53t n=-ti>J0' __j 

r ~~lll~ll 1 40° 

60° 

60° 2oow 20°E 60° 1ooo 140° 180° 140° 1oo· 60° 

FIGURE a.-Distribution of calcium carbonate in the ocean deposits (from Lisitzen, 1971). 1, <1 percent; 2, 1-30 percent; 3, 30-70 percent; 

4, >70 percent. 

~ 

~ 

t?=J 

< 1-4 

0 

d 

00 

~ 

0 

~ 

~ 

Ql 
6 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

PROCEDURE 

The top 2 centimeters of each core was preserved 

in alcohol and stained with rose bengal; the remainder of each core was examined at 10-cm 

inte·rvals. 

Samples were washed on a 200-mesh screen, and 

all Foraminifera were picked. The number of specimens indicated on pages 7-12 represents the actual 

number of specimens counted. 

ENVIRONMENT OF THE NORTH PACIFIC 

Bottom-water temperature in most parts of the 

area covered by this report ranges from 1 o to 2° C. 

The sediment types are shown in figure 2, taken from 

Revelle (1944). Samples directly south of the Aleutian Islands are composed of terrigenous material; 

those farther south, to latitude 50° N., are markedly 

rich in diatoms (see table 1) ; and those still farther 

south are characteriz·ed by red clay. None of the 

samples are far enough south to reach areas high in 

CaC03. (See fig. 3.) 

Samples taken in fairly shallow water, north of 

the Aleutian Trench, have a high percentage of calcareous forms. Table 2 is a compilation of species 

TABLE 2.-Distribution of Foraminifera in the North Pacific 

Bolivina pseudoplicata ____ _ Buliminella basicostata ___ _ Elphidium magellanicum __ _ 

Epistominella exigua ------

Fissurina sp --------------

Nonionella auricula ______ _ 

bradyi --------------- Rosalina sp -------------- Virgulina cf. V. complanata Globigerina bulloides _____ _ 

Pseudogaudryina atlantica _ A ngulogerina angulosa ___ _ 

Bolivina decussata -------- Cassidulina crassa -------- teretis --------------- tortuosa -------------

Cibicides lobatulus -------- refulgens ------------ Nonion scaphum ________ _ Uvigerina cushmani _____ _ 

Tritaxis conica -----------

Globotextularia anceps ___ _ 

Dorothia exilis ----------- Eggerella bradyi ---------

scabra --------------- Ophthalmidium acutimargo 

pusillum -------------

Quinqueloculina sp _______ _ 

Pyrgo sp ---------------- Miliolinella subrotunda ___ _ A mmomassilina 

alveolina.formis ____ _ 

Bolivina robusta ----------

Aleutian 

Terrace 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

Aleutian 

Trench 

X 

X 

X 

Deep-sea 

plain 

X 

X 

X 

X 

X 

X 

X 

X 

X 

TABLE 2.-Distribution of Foraminifera in the 

North Pacific-Continued 

Bulimina aculeata _______ _ 

Globobulimina auriculata __ 

pacifica -------------- Uvigerina peregrina ______ _ Epistominella exigua _____ _ 

umboni.fera -----------

Elphidium incertum 

Elphidiella groenlandica __ _ Globorotalia infiata Globigerina bulloides _____ _ 

Candeina nitida -----------

Cibic.ides bradyi ---------- Cassidulina subglobosa ___ _ 

crassa --------------- Ehrenbergina hystrix ____ _ 

Involutina tenuis ---------

Nonion labradoricum _____ _ 

Nonionella turgida -------- Pullenia subcari]tata _____ _ Gyroidina lamarckiana ___ _ Anomalina globulosa _____ _ 

Cibicidoides cf. C. mundulus 

Melonis affine ------------- pompilioides ---------- Hoeglundina elegans Rhabdamina abyssorum ___ _ 

Rhizammina? sp --------- Marsipella cylindrica _____ _ Bathysiphon discreta _____ _ 

Jaculella acuta ----------- Hyperammina spp --------

Psammosphaera rustica ___ _ Saccammina sphaerica ____ _ Thurammina papillata ____ _ Glomospira gordialis _____ _ Hormosina globulifera ____ _ 

Reophax dentalinaformis __ 

difflugiformis --------- distans --------------

nodulosus ------------ pilulifer ------------- scorpiurus -----------

scotti ---------------- excentric,us ----------- Adercotryma glomerata ___ _ 

Cyclammina cancellata ___ _ 

trullissata ------------ Alveolophragmium nitidum_ cf. A. nitidum _______ _ 

ringens -------------- scitulum ------------- subglobosum --------- weisneri -------------- Alveolophragmium? sp ___ _ 

A mmobaculites agglutinans _ agglutinans filaformis 

(smooth) ---------- agglutinans filaformis 

(rough) ----------- americanus ----------- Ammomarginulina foliacea _ 

Placopsilina confusa ------- Spiroplectammina bi.formis_ 

Bigenerina minutissima ___ _ 

Aleutian 

Terrace 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

Aleutian 

Trench 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

Deep-sea 

plain 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 
FORAMINIFERA IN GRAB SAMPLES AND IN TOP 2 CENTIMETERS OF CORES 7 

TABLE 2.-Distribution of Foraminifera in the 

North Pacific-Continued 

Trochammina grisea _____ _ 

infiata --------------- kellettae ------------- malovensis ----------- cf. T. malovensis _____ _ 

nana ---------------- sp. (chitinous) -------

nitida ---------------- globigeriniformis ------

Cystammina galeata Nodellum membranaceum __ H aplophragmoides canariensis ________ _ 

nitida ---------------- Oculosiphon cf. 0. linearis __ Psammosiphonella sp _____ _ 

Aleutian 

Terrace 

X 

X 

Aleutian 

Trench 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

Deep-sea 

plain 

X 

X 

X 

X 

X 

X 

X 

that are present in three areas : the Aleutian Terrace, the Aleutian Trench, and the deep-sea plain. 

No indication of relative abundance is given. Samples from the trench itself have surprisingly large 

numbers of species and specimens, almost entirely 

arenaceous. One interesting aspect of the trench 

faunas is that the cement of several species is all or 

in part composed of pseudochitin, as though there 

simply was not enough calcitic cementing material 

available. 

,--------,--,--------,-----,-------,--,~~0 ~ 

0:: 

lLI 

1-

I.LI 

~ 

2000 ~ 

ci 

lLI 

!;i: 

3: 

4000 LL. 

0 

I 

1--

Cl.. 

lLI 

UL--------~~--------L-----~------~~~~6000 0 

69 64 63 56 

STATION 

52 49 4812 7 

19 16 

10 

FIGURE 4.-Depth of water for stations along long. 160° W. 

25 26 27 29 32 33 35 

STATION 

38 40 13 

41 

~ 

0:: 

lLI 

2000 IlLI 

~ 

~ 

ci 

4000 lLI 

I-

<( 

3: 

LL. 

0 

6000 I 

ICl.. 

lLI 

0 

FIGURE 5.-Depth of water for stations along long. 180° W. 

Depths of the samples are plotted in figures 4 and 

5 and show graphically the great depth from which 

most of these samples came. It is unusual to find 

Foraminifera at such great depths because of the 

low CaC03 concentration. 

Faunal lists of the top 2 em of the cures are arranged from north to south. A separate list of 

faunas found below the surface are arranged serially 

by sample number. These fossil faunas show an 

extreme paucity of s.pecim·ens. 

FORAMINIFERA IN GRAB SAMPLES AND IN 

TOP 2 CENTIMETERS OF CORES 

[Approximate washed volume 10 cm3 ; depth given in meters below sea level] 

Kodiak Harbor, Kodiak Island, depth 10 meters 

[No diatoms, Radiolaria, or sponge spicules seen] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragmium subglobosum ---------- 1 

Eggerella scabra ----------------------- 12 

Haplaphragmoides canariensis ------------ 7 

Calcareous benthonic: 

Buccella frigida ------------------------- 69 6 

cf. B. inusitata --------------------- 3 

Buliminella elegantissima ---------------- 1 

Elphidium bartletti --------------------- 14 

clavatum --------------------------- 37 4 

orbiculare -------------------------- 13 4 

sp. (smooth) ----------------------- 4 

Nonion labradoric,um -------------------- 1 

Virgulina cf. V. complanata -------------- 4 4 

Core P-7-61, depth 76 meters. Lat 56°24' N., long 155°36'W. 

[One large (1-cm-long) shrimp and about equal volumes of 

diatoms and Foraminfera] 

Specimens 

Total Stained · 

Arenaceous benthonic: 

Eggerella scabra ------------------------ 1 

Calcareous benthonic: 

Bolivina pseudoplicata ------------------- 7 

Buliminella basicostata ------------------ 1 

Elphidium magellanicum ----------------- 7 

Episto'f}tinella exigua -------------------- 25 F~ssunna sp --------------------------- 1 

Nonionella auricula --------------------- 1 

bradyi ----------------------------- 5 

Rosalina sp ---------------------------- 1 

Virgulina cf. V. complanata ------------- 1 

Calcareous planktonic : 

Globigerina bulloides -------------------- 1 

Core P-9-61, depth 121 meters. Lat 54°55'N., long 157°59'W. 

Specimens 

Total Stained 

Arenaceous benthonic: 

Pseudogaudryina atlantic,a --------------- 2 

sp --------------------------------- 1 Calcareous benthonic: 

Angulogerina angulosa ------------------ 2 

Bolivina decussata ---------------------- 5 

Cassidulina crassa ---------------------- 42 

teretis ----------------------------- 113 

tortuosa ---------------------------- 76 

Cibicides lobatulus ---------------------- 17 

refulgens --------------------------- 13 

Elphidium bartletti --------------------- 4 

cf. E. crispum ---------------------- 3 

Epistominella exigua -------------------- 1 

Lagena spp ----------------------------- 6 

Loxostomum amygdaliformis ------------- 1 

Nonion scaphum ------------------------ 6 

PseJldO'J!olymorphina_ lingua -------------- 1 

lJv~ger~na cushman~ -------------------- 11 

1 

8 
8 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Core P-9-61, depth 121 meters. Lat 54°55' N., 

long 157°59' W.-Continued 

Specimens 

Total Stained 

Calcareous planktonic: 

Globigerina bulloides -------------------- 21 

pachydernta ------------------------ 15 

Orbulina universa ----------------------- 1 

Core P-16-61,depth 2,410 meters.Lat 53°53' N.,long 16r40' W. 

[Diatoms 98 percent; Radiolaria, sponge spicules, Foraminfera compose the remainder, but none very abundant] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragntiunt subglobosunt ---------- 2 

Eggerella bradyi ------------------------ 1 

Trochantntina globigeriniformis ----------- 1 

grisea ----------------------------- 1 

Calcareous benthonic: 

Bulintina cf. B. auric,ulata --------------- 3 2 

ntexicana --------------------------- 1 

Elphidiunt incertum --------------------- 2 

Elphidiella groenlandica ----------------- 24 3 

Globobulimina pac·ifica ------------------- 1 1 

Hoeglundina elegans _______________ 2 corroded 

Nonion labradoricum -------------------- 4 4 

Nonionella turgida ---------------------- 6 6 

Pyrgo sp ------------------------------- 1 

Uvigerina peregrina --------------------- 3 

Virgulina pauciloculata ------------------ 3 

Calcareous planktonic: 

Globigerina bulloides -------------------- 7 

pachyderma ------------------------ 5 

CoreP-19-61,depth 4,430 meters.Lat 52°41' N.,long 155°36' W. 

[Diatoms extremely abundant, a few Radiolaria and Foraminifera] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Adercotrynta glomeratum ---------------- Alveolophragmiunt nitidum -------------- cf. A. nitidum ----------------------

ringens ---------------------------- subglobosum ______________________ _ 

weisneri --------------------------- Ammobaculites filaforntis (smooth) ______ _ 

Amntomarginulina foliacea -------------- Cystantmina galeata -------------------- Eggerella bradyi ------------------------ Glomospira gordialis -------------------- Haplophragntoides canariensis ------------

nitida ------------------------------ Hyperamntina cf. H. friabilis ------------- Jaculella acuta (all chitinous) ___________ _ 

Nodellum ntembranaceunt ---------------- Oculosiphon cf. 0. linearis --------------- Psantmosiphonella sp -------------------- Reophax dif]lugiforntis -----·--------------

excentricus ------------------------- pilulifer _________ ---- _ ------------- Trochammina globigeriniformis _________ _ grise a ____________________________ _ 

sp. (like chitinous) ----------------- Calcareous benthonic: 

Cassidulina crassa ---------------------- Cibicides bradyi ------------------------- Miliolinella subrotunda ------------------ Pullenia subc,arinata -------------------- Calcareous planktonic : 

2 

10 

5 

2 

18 

13 

1 

3 

7 

8 

2 

2 

5 

37 

13 

5 

2 

8 

4 

9 

1 

22 

7 

2 

1 

19 

3 

3 

Globigerina bulloides _______________ 2 corroded 

2 

2 

2 

2 

2 

4 

2 

4 

1 

3 

Core P-10-61,depth 4,170 meters.Lat 54°51' N.,long 155°24 W. 

[Diatoms and Radiolaria abundant] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragmiunt subglobosum ---------- 2 

nitidum ---------------------------- 3 

Amntomarginulina foliacea --------------- 1 

Cyclammina trullissata ------------------ 1 

Core P-10-61, depth 4,170 meters. Lat 54•0 51' N., 

long 155°24' W.-Continued 

Specimens 

Total Stained 

Arenaceous benthonic-Continued 

Cystantmina galeata -------------------- Eggerella bradyi ------------------------ Reophax dif]lugiformis ------------------ Spiroplectammina biforntis -------------- Trochammina globigeriniformis ---------- Calcareous benthonic: 

Cassidulina cf. C. subglobosa ------------

1 

6 

2 

2 

1 

2 

1 

Core P-12-61,depth 6,560 meters.Lat 53°16' N.,long 16r33' W. 

Specimens 

Total Stained 

Arenaceous benthonic: 

Adercotryma glomeratunt ---------------- 18 

Alveolophragmiunt nitidunt -------------- 64 

cf. A. nitidum ---------------------- 141 

subglobosunt ----------------------- 98 

Ammobaculites antericanus -------------- 1 

agglutinans filaformis (smooth) ------ 70 

agglutinans filaforntis (rough) ------- 29 

Astrorhiza __________________ Fragments sp. A 

Jaculella acuta ------------------------- 5 

Psamntosiphonella sp -------------------- 6 

Reophax dentalinaformis ---------------- 2 

dif]lugiformis ----------------------- 39 

nodulosus -------------------------- 22 

scotti (chitinous) ------------------- 1 

Rhizantntina sp ______________ Fragments sp. A 

Trochantmina globigeriniforntis ----------- 55 

Trochammina sp. (like chitinous) -------- 37 

Trochammina sp. (chitinous) ------------ 44 

Calcareous benthonic: 

Eponides? sp --------------------------- 3 3 

Involutina tenuis ------------------------ 35 

Miliolinella subrotunda ------------------ 3 

Pullenia subcarinata -------------------- 31 31 

Core P-48-61,depth 4,650 meters.Lat 5r41' N.,long 16r07' W. 

[Diatoms extremely abundant ( <99 percent), Radiolaria and Foraminifera 

about equal] 

Total specimens 

Arenaceous benthonic: 

Adercotryma glomeratum -------------------- 83 

Alveolophragmiunt nitidum ------------------ 21 

cf. A. nitidum -------------------------- 47 

scitulunt ------------------------------- 3 

subglobosum --------------------------- 52 

weisneri ------------------------------- 1 

Ammobaculites antericanus ------------------- 32 

agglutinans filaformis (smooth) ---------- 4 

agglutinans filaforntis (rough) ----------- 19 

Ammomarginulina foliacea ------------------- 8 Astrorhiza _______________________________ Fragments 

Baculogypsina or Thurammina -------------- 2 

Cornuspira incerta ----~--------------------- 14 

Cyclamntina trullissata ---------------------- 3 

Cystamntina galeata ------------------------- 3 

Eggerella bradyi ---------------------------- 3 

scabra --------------------------------- 7 

Glomospira gordialis ------------------------ 2 

Hormosina -------------------------------Fragments 

Hyperammina cylindrica --------------------- 2 J aculella acuta __ _ _ ___ __ _ _ _ _ _ _____ __ _ ___ _ _ __ 17 

Reophax dif]lugiforntis ----------------------- 43 

dentalinaformis ------------------------- 2 

distans --------------------------------- 3 scorpiurus _ _ _ __ __ _ _ _ _ __ _ _ _ ___ _ _ _ __ _ _ _ _ _ 65 

Rhabdammina ____________________________ Fragments 

Saccammina sphaerica ----------------------- 19 

Spiroplectammina biformis ------------------- 1 

Trochantntina globigeriniformis -------------- 28 

grisea --------------------------------- 1 

infiata --------------------------------- 25 

nitida ---------------------------------- 10 

Calcareous benthonic: 

Nonion? sp. chitinous ------------------------ 2 
FORAMINIFERA IN GRAB SAMPLES AND IN TOP 2 CENTIMETERS OF CORES 9 

Core P-49-61,depth 5,000 meters.Lat 59°50' N.,long 160°57' W. 

[Diatoms <95 percent, Radiolaria 4 percent, Foraminifera and sponge skeletons compose the rest] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Adercotryma glomeratum ---------------- 29 

Alveolophragmium cf. A. nitidum --------- 14 

ringens ---------------------------- 10 

subglobosum ------------------------ 168 

Ammobaculites agglutinans -------------- 88 

filaformis (rough) ------------------ 6 

Baculogypsina or Thurammina ----------- 2 

Cyclammina cancellata ------------------ 4 

trullissata ------------------------- 9 

Dorothia exilis -------------------------- 1 

Eggerella bradyi ----------------------- 52 

Globotextularia anceps ------------------ 10 

Glomospira gordialis -------------------- 24 

Hormosina globulifera _____________ Fragments 

Hyperammina cylindric,a ----------------- 99 /riabilis _ __ __ _ __ _ _ _ _ ___ _ _ __ _ _ _ __ _ __ _ 62 

Involutina tenuis ----------------------- 2 

Jaculella acuta ------------------------- 11 

Placopsilina bradyi --------------------- 51 

Psammosiphonella sp -------------------- 3 

Reophax difflugiformis ------------------ 87 

excentricus ------------------------- 103 

Spiroplectammina biformis --------------- 18 

Trochammina globigeriniformis ---------- 35 

nana ------------------------------ 107 

nitida ------------------------------ 39 

chitinous --------------------------- 1 

Calcareous benthonic: 

Cibicides bradyi ------------------------ Cibicidoides mundulus __________________ _ 

Ehrenbergina hystrix ------------------- Epistominella exigua ------------------- umbonifera ________________ - _ ---- __ _ 

Gyroidina lamarckiana ------------------ Hoeglundina elegans -------------------- Miliolinella subrotunda ------------------ Melonis affine -------------------------- Nonion sp. chitinous -------------------- Calcareous planktonic: 

2 

1 

1 

3 

2 

1 

1 

28 

1 

1 

Globigerina bulloides ------------ 3 corroded 

4 

30 

1 

3 

2 

1 

1 

Core P-52-6l,depth 5,160 meters.Lat 43°47' N.,long 160°36' W. 

[Diatoms 50± percent, Radiolaria 50± percent, a few Foraminifera and sponge skeletons] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Ade-rcotryma glomeratum ---------------- 1 

Alveolophragmium cf. A. nitidum --------- 5 

Ammobaculites agglutinans -------------- 1 

Dorothia exilis ------------------------- 1 

Eggerella scabra ----------------------- 1 

Glomospira gordialis ------------------- 12 

Placopsilina bradyi ---------------------- 1 

Psammosiphonella sp -------------------- 5 

Spiroplectammina biformis -------------- 4 

Reophax difflugiformis ------------------ 2 

Trochammina globigeriniformis ---------- 25 

grisea ----------------------------- 1 

nitida ----------------------------- 1 

Calcareous benthonic: 

Cibicides bradyi ------------------------ 1 

Epistominella exigua -------------------- 3 

Miliolinella subrotunda ------------------ 5 

Ophthalmidium acutimargo -------------- 2 

Pullenia subcarinata -------------------- 1 1 

Core P-56-61,depth 5,400 meters,Lat 39°20' N.,long 160°24' W. 

[ Radio!aria 95 percent, diatoms 4 percent, Foraminifera and sponge skeletons 1 percent] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Adercotryma glomeratum ---------------- 1 

Alveolophragmium nitidum -------------- 6 

Ammobaculites americanus -------------- 1 

Core P-56-61, depth 5,400 meters. Lat 39°20' N., 

long 160°24' W.-Continued 

Specimens 

Total Stained 

Arenac-eous benthonic~Continued 

Cornuspira involvens -------------------- 2 

Glomospira gordialis -------------------- 1 

Hyperammina cylindrica ----------------- 2 

Marsipella cylindrica -------------------- 14 

Psammosiphonella ---------------------- 1 

Reophax dentalinaformis ---------------- 2 

Troc,hammina globigeriniformis ---------- 7 4 

Calcareous benthonic: 

Cibicides bradyi ------------------------ 2 2 

Discorbis cf. D. rosea -------------------- 2 

Planktonic benthonic : Candeina nitida ------------------------ 1 

Core P-64-61,depth 5,830 meters.Lat 30°16' N.,long 160°07' W. 

[A few Radiolaria, sponge skeletons, Foraminifera] Total specimens 

Arenaceous benthonic : 

A~chem~nella .sp -.--.------------------------- 3 

Btgenenna mtnuttsstma --------------------- 1 

Reophax difflugiformis ----------------------- 2 Rhabdammina sp __________________________ Fragments 

Saccammina sphaerica ---------------------- 3 

Trochammina globigeriniformis -------------- 1 

Core P-69-6l,depth 4,820 meters.Lat 23°30' N.,long 159°58' W. 

[A few Radiolaria, sponge skeletons, Foraminifera] Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragmium subglobosum ---------- 3 

Ammobaculites agglutinans -------------- 2 

Cyc,lammina sp ------------------------- 1 

Glomospira gordialis -------------------- 2 

Reophax difflugiformis ------------------ 4 

scorpiurus ------------------------- 3 

Rhabdammina sp ----------------------- 9 

Trochammina globigeriniformis ---------- 3 nitida ______________________ --- __ _ _ _ 1 

Eponides bradyi ------------------------ 2 2 

Core P-13-6l,depth 7,000 meters.Lat 51 °28' N.,long 168°38' W. 

[Diatoms 98 percent, Radiolaria <2 percent, Foraminifera <1 percent] Specimens 

Total Stained 

Arenaceous benthonic : Adercotryma glomeratum ---------------- 1 

Alveolophragmium nitidum -------------- 57 

scitulum --------------------------- 22 

wewneri --------------------------- 1 

Cornuspira incerta ---------------------- 9 

Eggerella scabra ------------------------ 1 

Hyperammina cylindrica ----------------- 14 

Marispella cylindrica ------------------- 5 

Reophax dentalinaformis ---------------- 1 

difflugiformw ----------------------- 3 

excentricus ------------------------- 12 

nodulosus -------------------------- 4 

scorpiurus -------------------------- 7 

Rhabdammina sp ----------------------- 7 

Spiroplectamina biformis --------------- 1 

Trochammina globigeriniformis --------- 55 

Trochammina (chitinous) --------------- 1 

Calcareous benthonic: 

Pullenia subcarinata -------------------- 5 5 

Core P-41-61, depth 7,230 meters. 

Lat 50°24' N., long 176°30' W., Aleutian Trench. 

[Diatoms about 90 percent; Foraminifera 5 percent; sponge spicules and skeletons and Radiolaria make up 5 percent] 

Arenaceos benthonic: 

Adercotryma glomeratum ---------------- Alveolophragmium c.f. A. nititum _______ _ sc,itulum ________________ -- _ -- __ -- _-

subglobosum -----------------------

Specimens 

Total Stained 

5 

250+ ------ 12 

58 
10 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Core P-41-61, depth 7,230 meters. Lat 50°24' N., 

long 176°30' W., Aleutian Trench-Continued 

Specimens 

Arenaceous benthonic-Continued 

Ammobaculites agglutinans filaformis 

Total Stained 

(smooth) ---------------------------- 26 Ammobaculites agglutinans filaformis 

(rough) ----------------------------- 1 

Ammoscalaria tenuimargo --------------- 9 Astrorhiza sp ______________________ Abundant 

Baculogypsina? sp --------------------- 2 

Globotextularia? sp --------------------- 8 

Hyperammina friabilis ------------------ 150+ _____ _ 

Involutina tenuis ---------------------- 90 

Jaculella acuta ------------------------- 19 

Placopsilina bradyi -------------------- 36 

Reophax diffiugiformis ------------------ 79 4 

excentricus ------------------------- 103 

nodulosus -------------------------- 1 

Rhabdammina sp ---------------------- 55 

Saccammina sphaerica ------------------ 106 

Spiroplectammina biformis ------------- 1 

Trochammina charlottensis ------------- 4 

globigeriniformis _ __ _ _ __ ___ _ _ _ _ _ __ __ 125 + _____ _ Trochammina (chitinous) --------------- 504 

Calcareous benthonic: 

Pullenia subcarinata ------------------- 8 8 

Core P-40-61,depth 5,500 meters.Lat 48°06' N.,long 176°32' W. 

[Diatoms about 85 percent; Foraminifera 5 percent; Radiolaria, sponge skeletons, and fish remains make up 10 percent] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Adercotryma glomeratum --------------- 2 

Alveolophragmium nitidum -------------- 9 

subglobosum ----------------------- 25 

Ammobaculites agglutinans filafm·mis 

(smooth) ---------------------------- 15 

Bigenerina minutissima ---------------- 5 

Cyclammina cancellata ------------------ 5 trullissata _ _ _ _ __ _ _ _ _ _ _ _ __ _ _ __ _ _ _ __ _ 5 

Cystammina galeata ------------------- 2 

Eggerella bradyi ----------------------- 5 

Glomospira gordialis -------------------- 25 

Hormosina globulifera ---------- 1 + fragments ____ _ 

Jaculella a~uta ------------------------ 2 

Miliolinella subrotunda ------------------ 4 

Reophax dijfiugiformis ------------------ 2 

nodulosus -------------------------- 6 

scorpiurus ------------------------- 27 

Trochammina globigeriniformis ---------- 35 

nitida ----------------------------- 6 

Calcareous benthonic: 

Bolivina robusta ----------------------- 1 1 

Core P-38-61,depth 5,610 meters.Lat 45°50' N.,long 176°47' W. 

[Formaminifera about 5 percent; diatoms 75 percent; Radiolaria 15 percent; sponge skeletons and spicules and fish teeth make up 5 percent] 

Arenaceous benthonic: 

Adercotryma glomeratum --------------- Alveolophragmium nitidum -------------- cf. A. nitidum ---------------------- subglobosum ----------------------- Ammobaculites filaformis (smooth) ------- . ? amer~canus. -----------------------

Specimens 

Total Stained 

8 

21 

9 

19 

23 

11 

Ammoscalaria tenuimargo _____ ---------- 9 

Astrorhiza sp ____________ Abundant fragments 

Bigenerina minutissima ------------------ 4 

Cyclammina cancellata ------------------ 1 trullissata _ __ _ _ _ __ _ __ _ _ __ _ _ _ __ __ _ __ _ 2 

Eggerella fusca ------------------------ 3 

Glomospira gordialis -------------------- 153 

Jaculella acuta -------------------------- 3 

Placopsilina bradyi --------------------- 5 

Psammosiphonella sp -------------------- 3 

Core P-38-61, depth 5,610 meters. Lat 45°50' N., 

long 176°47' W.-Continued 

Specimens 

Total Stained 

Arenaceous benthonic-Continued 

Reophax diffiugiformis ------------------

distans ----------------------------

excentricus ------------------------ nodulosus -------------------------- Rhabdammina sp ----------------------- Spiroplectammina biformis -------------- Tritaxis cf. T. conica -------------------- Trochammina globigeriniformis ----------

Calcareous ~i~~~a benthonic: ============================= 

Miliolinella subrotunda ------------------

~onion sp ----------------------------- Quinqueloculina sp ---------------------

14 

1 

12 

11 

13 

8 

29 

33 

6 

6 

12 

1 

1 

6 

1 

1 

Core P-35-61,depth 5,530 meters.Lat 4P19' N.,long 177°02' W. 

[Radiolaria about 90 percent, diatoms 7 percent, sponge and fish remains 

3 percent, Foraminifera <1 percent] 

Total specimens 

Calcareous benthonic: 

Miliolinella subrotunda --------------------- 2 

Ophthalmidium pusillum --------------------- 2 

Core P-33-61,depth 5,230 meters.Lat 39°15' N.,long 176°56' W. 

[Radiolaria about 90 percent, diatoms 5 percent, Foraminifera 3 percent, sponge and fish remains 2 percent] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragmium nitidum -------------- 2 

subglobosum ----------------------- 9 

wiesneri --------------------------- 1 

Ammobaculites americanus -------------- 1 

filaformis (rough) ----------------- 5 

Ammomarginulina foliacea -------------- 5 Astrorhiza sp _____________________ Fragments 

Eggerella advena ----------------------- 10 

Glomospira gordialis -------------------- 15 

Hormosina normani --------------------- 4 

Psammosiphonella sp -------------------- 2 

Psammosphaera fusca ------------------- 1 

Reophax scorpiurus --------------------- 4 2 

distans ---------------------------- 3 Rhabdammina sp _________________ Fragments 

Trochammina grisea -------------------- 1 

nitida ----------------------------- 7 

Calcar·eous benthonic: 

Miliolinella subrotunda ------------------- 7 

Ophthalmidium pusillum ----------------- 2 

Core P-32-61,depth 5,400 meters.Lat 36°50' N.,long 177°30' W. 

[Radiolaria 90 percent, diatoms 6 percent, Foraminifera 1 percent, sponge and fish remains 3 percent] 

Arenaceous benthonic: 

Alveolophragmium nitidum -------------- cf. A. nitidum ----------------------

ringens ---------------------------- subglobosum ----------------------- Ammobaculites filaformis (smooth) ------ Ammoscalaria tenuimargo --------------- Bigenerina minutissima ----------------- Cyclammina trullissata ------------------

Eggerella advena ----------------------- Glomospira gordialis -------------------- Hormosina globulifera ------------------ Hyperammina C,1Jlindrica ----------------- Psammosiphonella sp -------------------- Reophax diffiugiformis ------------------ scorpiurus _________ - _____________ - _ 

Trochammina globigeriniformis ---------- g':i~ea ____________________________ _ 

ntttda -----------------------------

Specimens 

Total Stained 

3 

4 

1 

2 

5 

1 

1 

1 

2 

7 

5 

7 

1 

22 

6 2 

6 

3 

3 
FORAMINIFERA BELOW TOP 2 CENTIMETERS OF CORES 11 

Core P-32-61, depth 5,400 meters. Lat 36·050' N., 

long 177°30' W.-Continued 

Specimens 

Total Stained 

Calcareous benthonic: 

Miliolinella circularis ------------------- 9 

Ophthalmidium acutimargo ------------- 10 

Pullenia subcarinata -------------------- 2 2 

Core P-29-61,depth 4,810 meters.Lat 32°22' N.,long 177°20' W. 

[Radiolaria about 70 percent, diatoms 25' percent, Foraminifera 1 percent, sponges and fish remains 4 percent] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Ammobaculites filaformis ---------------- 5 

Ammoscalaria tenuimargo --------------- 1 

Cystammina galeata --------------------- 1 

Glomospira gordialis -------------------- 35 

Hormosina globulifera ____________ Fragments 

Hyperammina cylindrica ----------------- 5 

Psammosiphonella sp -------------------- 2 

Trochammina globigeriniforrnis ---------- 6 

Trochammina cf. T. nitida --------------- 1 

Calcareous benthonic: 

Cassidulina subglobosa ------------------ 2 

Cibicides bradyi ------------------------ 11 2 

Hoeglundina elegans -------------------- 8 

Melonis pompilioides ------------------- 1 

Miliolinella subrotunda ------------------ 1 

Spiroloculina sp ------------------1 corroded 

Core P-27-61,depth 5,290 meters.Lat 30°06' N.,long 177°30' W. 

[Radiolaria about 85 percent, diatoms 10 percent, sponge or fish remains 5 percent, Foraminifera <1 percent] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Alveolophragmium nitidum -------------- 1 

subglobosum ----------------------- 7 

Ammobaculites americanus -------------- 1 

Cyclammina trullissata ------------------ 1 

Cystammina galeata --------------------- 1 

Glomospira gordialis -------------------- 2 

Psammosiphonella sp -------------------- 4 

Calcareous benthonic : Miliolinella subrotunda ------------------ 2 

Core P-26-61,depth 5,210 meters.Lat 25°55' N.,long 177°34' W. 

[Only a few specimens of Radiolaria, sponge skeletoru;, fish teeth, 

Foraminifera; all present in nearly equal amounts) 

Total specimens 

Arenaceous benthonic: 

Rhabdammina sp _________________ Abundant fragments 

Astrorhiza sp ------------------------------- 1 

Glomospira gordialis ------------------------ 4 

Reophax difflugiformis ---------------------- 3 

Core P-25-61,depth 5,120 meters.Lat 23°22' N.,long 177°54' W. 

[No Radiolaria, diatoms, or sponges. few fish teeth, Foraminifera. Northernmost sample with planktonic Foraminifera] 

Specimens 

Total Stained 

Arenaceous benthonic: 

Reophax difflugiformis ------------------ Rhabdammina sp ----------------------- Calcareous planktonic: Globigerina bulloides ___________________ _ 

infiata ----------------------------

FORAMINIFERA BELOW TOP 2 

CENTIMETERS OF CORES 

2 

1 

1 

1 

[ Core depths given in meters below sea level. Column headings are depths below sea floor in centimeters. Data indicate number of specimens. X indicates presence of fragments] 

Core P-10-61, depth 4,170 meters 

9-13 

Barren 

Core P-12-61, depth 6,560 meters 

Alveolophragmium subglobosum -------------- Ammobac.ulites filaformis -------------------- Reophax dentalinaformis --------------------

Core P-13-61, depth 7,000 meters 

10-11 

Alveolophragmium subglobosum --------- 1 

Core P-16-61, depth 2,410 meters 

10-11 20-21 30-31 40-.U 

Bulimina affinis ----- 1 2 

Elphidium clavatum _ 1 7 1 

Uvigerina peregrina_ 1 2 5 

?Eponides sp ------- 1 

Nonion 

labradoricum ---- 1 

Lagenid spp 2 

Core P-19-61, depth 4,430 meters 

10-11 

Cystammina galeata ------------------ 6 

Jaculella acuta ----------------------- 4 

Placopsilina confusa ------------------ 1 

Alveolophragmium subglobosum ________ 14 

Aderc,otryma glomeratum -------------- 1 

Eggerella bradyi ---------------------- 1 

Trochammina nitida ------------------- 1 

Hyperammina fragments -------------- X 

Cyclammina cancellata ---------------- Ammobaculites cf. A. americanus ______ _ 

Miliolinella fragments ----------------- Trochammina sp ---------------------

Core P-25-61, depth 5,120 meters 

10-11 B0-21 

3 2 

1 

3 

20-'U 30-31 

50-51 60-61 

3 1 

1 

2 3 

2 

B0-21 30-91 

15 

7 

X X 

1 

1 

X 

1 

10-11 20-21 30-81 40-41 50-51 60-61 70-'lt 80-81 

Globigerinita 

voluta ------- Globotruncana 

sp ----------- Guembelina 

globulosa ----- Colomia sp ____ _ 

Guembelina 

costulata _ 

sp --------- Globotruncana 

marginata ___ _ 

3 

1 

1 

1 

3 

3 

4 

1 

4 

1 

2 

1 

2 

2 

3 

Core P-32-61, depth 5,400 meters 

2 

2 

2 

1 

2 

1 

2 

2 

6 

3 

2 

1 

10-11 20-21 80-81 

Eggerella bradyi ___ _ 

40-41 50-51 60-61 

2 

Miliolinella 

subrotunda ------- 1 

Core P-33-61, depth 5,230 meters 

10-11 20-!41 80-91 40-41 50-51 

Reophax fragments ------- X 

Core P-38-61, depth 5,610 meters 

10-11 20-21 :10-31 40-41 50-51 60-61 70--71 

Reophax fragments __ A lveolophragmium 

subglobosum 

Miliolinella 

subrotundum 

X X X X 

Core P-40-61, depth 5,500 meters 

1 

1 

10-11 20-!41 30-31 

Alveolophragmium subglobosum -------- Reophax dentalinaformis -------------- Hyperammina spp --------------------

1 1 

2 

Core P-41-61, depth 7,230 meters 

0-11 B0-!41 

Alveolophragmium subglobosum __ 

8 4 

80-81 

1 

40-.U 
12 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Core P-48-61, depth 4,650 meters 

Psammosiphonella sp ----------------------- Hormosina globulifera ---------------------- Saccammina sp ---------------------------- Ammobaculites cf. A. americanus ------------ Adercotryma glomeratum -------------------- Reophax difflugiformis ----------------------

sp ------------------------------------ Alveolophragmium subglobosum ------------- scitulum ------------------------------- nitidum -------------------------------- Trochammina nitida ------------------------ Cyclammina cancellata ----------------------

Core P-49-61, depth 5,000 meters 

10-11 17-18 

2 

2 

2 

2 

1 

1 

1 

13 2 

2 

1 3 

1 ____ Fragments 

10-11 20-21 30-31 40-41 50-51 60-61 

A lveolophragmium 

subglobosum _____ 13 

Cyclammina 

cancellata ------- 2 

Eggerella bradyi ___ 3 

Placopsilina confusa _ 1 

Glomospira gordialis_ 1 

Reophax fragments _ X 

dentalinaformis _ 

2 

2 

2 

1 

9 

1 

Core P-56-61, depth 5,400 meters 

4 3 

2 

1 

10-11 20-21 30-31 40-41 50-51 60-61 70-71 80-81 

Arenaceous 

fragments X 

Core P-63-61, depth 5,830 meters 

10-11 !0-!tt, 30-31, 40-41, 50-51, 60-61, 70-71, 

80-81, 90-91, 100-101, 120-121 

lfyperammina? sp ___ 1 -----------------------------

Core P-64-61, depth 5,830 meters 10-11 

Barren 

Core P-69-61, depth 4,820 meters 

10-11 20-21 30-31 40-41 

Barren 

SYSTEMATIC CATALOG 

Family ASTRORHIZIDAE Brady, 1881 

Genus RHABDAMMINA M. Sars in Carpenter ,1869 

Rbabdammina abyssorum M. Sars 

Rhabdammina abyssorum M. Sars, 1869, Fordhandl Vidensk.-

Selsk. Christiania, Aar 1868, p. 248. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub 9, p. 42, pl. 21, figs. 1-13. 

The species occurs generally as fragments of extremely coarse-grained tubes, sometimes branching. 

The tubes are coarser grained in the northern sample,s but are moderately coarse in the southern ones. 

Distribution.-Lat 23° to 51 o N. 

Genus RHIZAMMINA, 1879 

Rhizammina 1 sp • 

Plate 1, figure 2 

The species occurs as tubular fragments. The 

walls of the tubes are composed of fine sand held 

together with abundant cement. 

Distribution.-Lat 32° to 53° N. 

Genus MARSIPELLA Norman, 1878 

MarsipeUa cylindrica Brady 

Plate 1, figure 3 

Marsipella cylindrica Brady, 1882, Royal Soc. Edinburgh 

Proc., v. 11, p. 714. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 265, 

266, pl. 24, figs. 20-22. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 30, 

figs. 15, 16. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 48, pl. 24, figs. 20-22. 

Distribution.-Found at two stations (56 and 13) 

lat 39° to 52° N. Cushman reported it in four North 

Pacific stations off Hawaii and Japan. 

Genus BA THYSIPHON M. Sars in G. Sars, 1872 

Bathysiphon dis creta (Brady) 

Plate 1, figure 4 

Rhabdammina discreta Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 48. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 268, pl. 

22, figs. 7-10. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 27, 

28, fig. 13. 

Psammosiphonella discreta (Brady). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, pl. 22, 

figs. 7-10. 

This species is characterized by its smooth wall 

texture and light color. 

Distribution.-Lat 30° to 53° N. A few specimens 

are found at many stations. 

Genus JACULELLA Brady, 1879 

Jaculella acuta Brady 

Plate 1, figure 5 

Jaculella acuta Brady, 1879, Micros. Sci. Quart. Jour., new 

ser., v. 19, p. 35, pl. 3, figs. 12, 13. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 255, pl. 

22, figs. 14-18. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 70, 

figs. 90, 91. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 44, pl. 22, figs. 14-18. 

?Jaculella acuta Brady. Heron-Allen and Earland, 1934, 

Discovery Repts., v. 10, Foraminifera, pt. 3, p. 72, 73, 

pl. 2, figs. 19, 20. 

These specimens are identical with Heron-Allen 

and Earland's illustrations, and the early part of 

the test is composed of pseudochitin. 

Distribution.-Lat. 46° to 53° N. Common in the 

Aleutian Trench area. 

Genus HYPERAMMINA Brady, 1878 

Hyperammina spp. 

Plate 1, figure 6 

Probably several species are present. One group 

seems to be larger and have a coarser wall (cf. H. 
SYSTEMATIC CATALOG 13 

friabilis Brady, 1884, Challenger Repts., Zoology, 

v. 9, p. 46, pl. 23, figs. 1, 2, 5, 6). Another group is 

smaller and more finely arenaceous ( cf. H. cylindrica 

Parr, 1950, Foraminifera, BANZ Antarctic Research 

Exped., 1929-1931, Repts., ser. B, v. 5, pt. 6, p. 254, 

pl. 3, fig. 5). However, where they occur together, it 

is so difficult to draw a line between the two groups 

that they are considered together. 

Distribution.-Lat 32° to 50° N. 

Family SACCAMMINIDAE Brady, 1884 

Genus PSAMMOSPHAERA Schulze, 1875 

Psammosphaera rustica Heron-Allen and Earland 

Psammosphaera rustica Heron-Allen and Earland, 1912, 

Royal Micros. Soc. London Jour., p. 383, pl. 5, figs. 3, 

4; pl. 6, figs. 2-4. 

Distribution.-Found in only one core sample, P33-61 (lat 39° N., depth 5,230 m). 

Genus SACCAMMINA M. Sars in Carpenter, 1869 

Saccammina sphaerica M. Sars 

Saccammina sphaeric,a M. Sars, 1869, Forhandl. Vidensk.-

Selsk. Christiania, Aar 1868, p. 248. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 253, pl. 

18, figs. 11-15, 17. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 39, 40, 

figs. 33-36. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 36, pl. 18, figs. 11-15, 17. 

Distribution.-Lat 30° to 52° N. Abundant in the 

Aleutian Trench. 

Genus THURAMMINA Brady, 1879 

Tburammina papillata Brady 

Plate 1, figure 7 

Thurammina papillata Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 45, pl. 5, figs. 4-8. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 321, pl. 

36, figs. 7-18. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 58, 

fig. 66. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 74, pl. 36, figs, 7-18. 

Distribution.-Lat 48° to 52° N. Reported previously from the North Pacific in Challenger stations 

from depths of 3,400 to 4, 700 meters. 

Family AMMODISCIDAE Reuss, 1862 

Genus GLOMOSPIRA Rzebak, 1885 

Glomospira gordialis (Jones and Parker) 

Plate 1, figure 8 

Trochammina squamata var. gordialis Jones and Parker, 

1860, Geol. Soc. London Quart. Jour., v. 16, p. 304. 

Parker and Jones, 1865, Royal Soc. London Philos. 

Trans., v. 155, p. 408, pl. 15, fig. 32. 

Ammodiscus gordialis (Jones and Parker). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 333, pl. 38, figs. 7-9. 

495-617 0- 73- 3 

Gordiammina gordialis (Jones and Parker). Cushman, 1910, 

U.S. Natl. Mus. Bull. 71, pt. 1, p. 76, 77, figs. 98-100. 

Glomospira gordialis (Jones and Parker). Cushman, 1918, 

U.S. Natl. Mus. Bull. 104, pt. 1, p. 99, pl. 36, figs. 7-9. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 78, pl. 38, figs. 7-9. 

Distribution.-Lat 23° to 53° N. Present, often 

abundantly, at stBrtions just south of the Aleutian 

Trench. 

Family HORMOSINIDAE Haeckel, 1894 

Genus HORMOSINA Brady, 1879 

Honnosina globulifera Brady 

Hormosina globulifera Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 60, pl. 4, figs. 4, 5. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 326, pl. 

39, figs. 1-6. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 93-

95, figs. 136, 137. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 80, pl. 39, figs. 1-6. 

Distribution.-Lat 32° to 52° N. Generally present 

as fragments recognizable by the texture of the wall. 

Brady described these as fragments of a peculiarly 

deep-water organism. It was found at 21 Challenger 

stations, only five of which had a depth of less than 

1,800 meters. 

Genus REOPHAX Montfort, 1808 

Reopbax dentalinaformis Brady 

Plate 1, figure 9 

Reophax dentalinaformis Brady, 1881, Micros. Sci. Quart. 

Jour., new ser., v. 21, p. 49. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 293, pl. 

30, figs. 21, 22. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 62, pl. 30, figs. 21, 22. 

Distribution.-Occurs from lat 39° to 51 o N. 

Brady listed it from 21 stations, only four of which 

were shallower than 1,800 meters. 

Reopbax difftugiformis ·Brady 

Plate 1, figure 10 

Reophax difflugiformis Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 51, pl. 4, fig. 3. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 289, pl. 

30, figs. 1-4. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 62, pl. 30, figs. 1-4. 

Proteonina difflugiformis (Brady). Cushman, 1910, U.S. 

Natl. Mus. Bull. 71, pt. 1, p. 41, 42, figs. 40, 41. 

Distribution.-This variable species occurs commonly at nearly all stations, most abundantly in 

deep water of the Aleutian Trench. 

Reopbax distans Brady 

Plate 1, figure 11 

Reophax distans Brady, 1881, Micros. Sci. Quart. Jour., new 

ser., v. 21, p. 50. 
14 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 296, pl. 

31, figs. 18-22. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 85, 86, 

fig. 119. 

Barker, 1960, Soc. Eoon. Paleontologists and Mineralogists Spec. Pub. 9, p. 64, pl. 31, figs. 18-22. 

Distribution.-Lat 39° to 52° N., rare and fragile. 

No specimens with more than three chambers found. 

Reophax nodulosus Brady 

Plate 1, figure 12 

Reophax nodulosa Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 52, pl. 4, figs. 7, 8. 

Brady, 1884, Challenger Rep,ts., Zoology, v. 9, p. 294, 

pl. 31, figs. 1-9. 

Reophax nodulosus Brady. Cushman, 1910, U.S. Natl. Mus. 

Bull. 71, pt. 1, p. 87, 88, fig. 122. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists S.pec. Pub. 9, p. 64, pl. 31, figs. 1-9. 

This species is generally large and robust. It shows 

a great deal of variation in chamber shape, as shown 

in Br;ady's (1884) illustrations. 

Distribution.-Lat 46° to 53° N. 

Reophax pilulifer Brady 

Reophax pilulifera Brady, 1884, Challenger Repts., Zoology, 

v. 9, p. 292, pl. 30, figs. 18-20. 

Reoplax pilulifer Brady. Cushman, 1910, U.S. Natl. Mus. 

Bull. 71, pt. 1, p. 85, figs. 117, 118. · 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 62, pl. 30, figs. 18-20. 

This species is very distinctive and somewhat similar to Hormosina globulifera Brady (1884, p. 53), 

but it has a coarsely arenaceous wall. 

Distribution.-Found in core samiPle P~19-61 (lat 

53° N., depth 4,430 m). 

Reophax scorpiurus de Montfort 

Plate 1, figure 13 

Reophax scorpiurus de Montfort, 1808, Conch. SySit., v. 1, 

p. 331, 83d genre. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 291, pl. 

30, figs. 12, 14-17. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 62, pl. 30, figs. 12, 14-17. 

This is one of the few arenaceous species that 

shows strong variation in wall texture. In the shoreward samples (P-13-61, P-19-61, P-38-61, P-41-

61, P-48-61, P-49-61) the wall texture is very 

coarse; the specimens are large, and the test generally has only three chambers. In the seaward samples (P-32-61, P-33-61, P-63-61, P-69-61), the 

wall is fine grained, and sponge spicules are often 

incorporated in the test, which generally has five 

chambers. 

Distribution.-Lat 23° to 51 o N. 

Reophax scotti Chaster 

Reophax scotti Chaster, 1892, 1st Rept. Southport Soc. Nat. 

Sci., 1890-91, p. 57, pl. 1, fig. 1. 

Hoglund, 1947, Zool. Bidrag Fran Uppsala, v. 26, p. 94-

96, fig. 72. 

Cushman and McCulloch, 1939, Allan Hancock Pacific 

Exped. Repts., v. 6, no. 1, p. 61, 62, pl. 3, fig. 11. 

Distribution.-A single specimen was found in 

only one core sample (P-12-61, lat 53° N., depth 

6,560 m). The extreme fragility of the test may account for its scarcity in prepared samples. 

Family LITUOLIDAE de Blainville, 1825 

Genus ADERCOTRYMA Loeblich and Tappan, 1952 

Adercotryma glomerata (Brady) 

Plate 1, figure 14 

Lituola glomerata Brady, 1878, Ann. Mag. Nat. History,ser. 

5, v. 1, p. 433, pl. 20, figs. la-c. 

Adercotryma glomeratum (Brady). Loeblich and Tappan, 

1952, Washington Acad. Sci. Jour., v. 42, no. 5, p. 141, 

142, figs. 1-4. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, pl. 70, pl. 34, figs. 15-18. 

These specimens are somewhat broader and have 

more deeply depressed sutures than those figured by 

Brady and by Loeblich and Tappan. 

Distribution.-Lat 30° N. to Aleutian Trench. 

According to Brady (1884, p. 309, 310), this species 

was found in relatively shallow water in Arctic seas 

and in deep water (greater than 3,600 m) of tropical 

and subtropical latitudes. 

Genus CYCLAMMINA Brady, 1879 

Cyclammina cancellata Brady 

Plate 1, figure 18 

Cyclammina cancellata Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 62. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 351, pl. 

37, figs. 8-16. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 110-

111, figs. 168-171. 

Barker, 1960, Soc. Econ. Paleontologists and Mi_neralogists Spec. Pub. 9, p. 76, pl. 37, figs. 8-16. 

Distribution.-Lat 46° to 50° N. Brady listed this 

species from two samples from the North Pacific, 

east from Japan, at depths of 3,400 and 5,300 meters. 

Cyclammina trullissata (Brady) 

Plate 1, figure 15 

Trochammina trullissata Brady, 1879, Micros. Sci. Quart. 

Jour., new ser., v. 19, no. 73, p. 56, pl. 5, figs. lOa, b. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 342, pl. 

40, fig. 13 (not fig. 14, 15). 

Cyclammina bradyi Cushman, 1910, U.S. Natl. Mus. Bull. 71, 

pt. 1, p. 113, fig. 174. 

Cyclammina trullissata (Brady). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 82, 

pl. 40, fig. 13. 
SYSTEMATIC CATALOG 15 

Distribution.-Widely distributed (lat 30° to 55° 

N.), rare. 

Genus ALVEOLOPHRAGMIUM Sbcbedrina, 1936 

Alveolopbragmium nitidum (Goes) 

Plate 1, figure 16 

Haplophragmium nitidum Goes, 1896, Harvard Coli. Mus. 

Comp. Zoology Bull., v. 29, p. 30, pl. 3, figs. 8, 9. 

Haplophragmoides nitidum Goos. Cushman, 1920, U.S. Natl. 

Mus. Bull. 104, pt. 2, p. 44. 

Haplophragmoides nitidus (Goes). Cushman, 1920, U.S. Natl. 

Mus. Bull. 104, pt. 2, p. 44. 

Haplophragmoides nitidus (Goes). Heron-Allen and Earland, 

1934, Discovery Repts., v. 10, Foraminifera, pt. 3, p. 88, 

89, pl. 3, figs. 3-6. 

This species is extremely smooth walled, brown in 

color, completely involute, with 4 or 41/2 chambers 

visible. 

Distribution.-Most common north of lat 50° N. 

in the Aleutian Trench area. 

Alveolopbragmium cf. A. nitidum (Goes) 

Plate 1, figure 17 

Haplophragmoides nitidus (Goes). Heron-Allen and Earland, 1934, Discovery Repts., v. 10, Foraminifera, pt. 

3, p. 88, 89, last paragraph. 

This form differs from the typical one in having a 

slightly coarser wall and more inflated chambers. 

It occurs with the t)11pical form. 

Distribution.-Most common north of lat 50° N. 

Extremely abundant in the deep waters of the Aleutian Trench (7,000 m or more). 

Alveolopbragmium ringens (Brady) 

Trochammina ringens Brady, 1879, Micros. Sci. Quart. Jour., 

new ser., v. 19, p. 57, pl. 5, fig. 12. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 343, pl. 

40, figs. 17, 18. 

Haplophragmoides ringens (Brady). Cushman, 1910, U.S. 

N atl, Mus. Bull. 71, pt. 1, p. 109, fig. 166. 

Alveolophragmium ringens (Brady). Parker, 1954, Harvard 

Coli. Mus. Comp. Zoology Bull., v. 111, no. 10, p. 487, 

pl. 1, fig. 19. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 82, pl. 40, figs. 17, 18. 

Specimens are identical with those figured by 

Brady. 

Distribution.-Widely distributed, but rare. Brady 

(1884, p. 344) did not record it from any Pacific 

stations. 

Alveolopbragmium scitulum (Brady) 

Plate 1, figure 19 

Haplophragmium scitulum Brady, 1881, Micros. Sci. Quart. 

Jour., new ser., v. 21, p. 50. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 308, p. 

34, figs. 11-13. 

Alveolophragmium scitulum (Brady). Parker, 1954, Harvard Coli. Mus. Comp. Zoology Bull., v. 111, no. 10, 

p. 487. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 70, pl. 34, figs. 11-13. 

Distribution.-Present only in the Aleutian 

Trench area. 

Alveolopbragmium subglobosum (G. 0. Sars) 

Plate 1, figure 20 

Haplophragmium latidorsatum (Bornemann). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 307, pl. 34, figs. 

7, 8, 10. 

Haplophragmoides subglobosum (G. 0. Sars). Cushman, 

1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 105, 106, figs. 

162-164. 

Labrospit·a subglobosa (G. 0. Sars). Hoglund, 1947, Zool. 

Bidrag. Fran Uppsala, v. 26, p. 144, 145, pl. 11, fig. 2, 

text fig. 126. 

Alveolophragmium subglobosum (G. 0. Sars). Barker, 1960, 

Soc. Econ. Paleontologists and Mineralogists Spec. 

Pub. 9, p. 70, pl. 34, figs. 7, 8, 10. 

Specimens have less deeply depressed sutures 

than those of Brady. Coarseness of wall is variable. 

Distribution.-Widely distributed, from lat 23° to 

54° N. Brady (1884, p. 308) found it at nine stations 

in the North Pacific at depths from 3,600 to 7,300 

meters. 

Alveolopbragmium weisneri (Parr) 

Pia te 2, figure 1 

Trochammina trullissata Brady, 1884, Challenger Repts., 

Zoology, v. 9, p. 342, pl. 40, figs. 14, 15 (not fig. 13). 

Labrospira weisneri Parr, 1950, Foraminifera, BANZ Antarctic Research Exped., 1929-1931, Repts., ser. B, v. 5, 

pt. 6, p. 272, pl. 4, figs. 25, 26. 

Labrospira arctica Parker, 1952, Harvard Coli. Mus. Comp. 

Zoology Bull., v. 106, no. 9, p. 399, pl. 2, figs. 7, 12. 

A lveolophragmium weisneri (Parr). Parker, 1954, Harvard 

Coli. Mus. Comp. Zoology Bull., v. 111, no. 10, p. 488, 

pl. 1, fig. 23. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 82, pl. 40, figs. 14, 15. 

Specimens are identical with those illustrated by 

Brady. 

Distribution.-Lat 39° to 52° N., rare. 

Alveolopbragmium? sp. 

Plate 2, figure 2 

The form is tiny, slightly evolute; sutures are curving, only slightly depressed; periphery is rounded, 

only slightly lobed; wall is smooth, red-brown, pseudochitinous; aperture is interio-areal. 

This is apparently an arenaceous form that has 

not developed an agglutinating stage (see also 

Trochammirw cf. T. malovensis, p. ) . It is very 

rare. 

Distribution.-Core samples P-48-61 (lat 52° N., 

depth 4,650 m) and P-49-61 (lat 50° N., depth 

5,000 m). 
16 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Genus AMMOBACULITES Cushman, 1910 

Ammobaculites agglutinans ( d'Orbigny) 

Plate 2, figure 3 

Spirolina agglutinans d'Orbigny, 1846, Foram. Fossiles Wien, 

p. 137, pl. 7, figs. 10-12. 

Haplophragmium agglutinans (d'Orbigny). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 301, pl. 32, figs. 

19-21, 24-26. 

Ammobaculites agglutinans (d'Orbigny). Cushman, 1910, 

U.S. Natl. Mus. Bull. 71, pt. 1, p. 115, fig. 176. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub .. 9, p. 6·6, pl. 32, figs. 19-21, 24-26. 

Wails of these specimens are coarser grained than 

those illustrated by Brady. 

Distribution.-Lat 23° to 50° N. Brady (1884, p. 

301, 775) listed it from deep water in the North 

Pacific. 

Ammobaculites agglutinans filaformis Heron-Allen and Earland 

(smooth form) 

Plate 2, figure 4 

Haplophragmium agglutinans (d'Orbigny). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 301, pl. 32, fig. 23 

(not fig. 22). 

Ammobac.ulites agglutinans filaformis Heron-Allen and Earland, 1934, Discovery Repts., v. 10, Foraminifera, pt. 3, 

p. 92, 93, pl. 3, fig. 12 (not fig. 11). 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 66, pl. 32, fig. 23 (not fig. 22). 

This smooth-walled form has low regular chambers, and the wall is brown. 

Distribution.-Lat 32° to 53° N., most abundant 

in the Aleutian Trench. Heron-Allen and Earland 

listed this form from deep water in the Antarctic 

Ocean. 

Ammobaculites agglutinans filaformis Heron-Allen and Earland 

(rough form) 

Plate 2, figure 5 

Haplophragmium agglutinans (d'Orbigny). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 301, pl. 32, fig. 22 

(not fig. 23). 

Ammobaculites agglutinans filaformis Heron-Allen and Earland, 1934, Discovery Repts., v. 10, Foraminifera, pt. 3, 

p. 92, 93, pl. 3, fig. 11 (not fig. 12). 

Barker, 1960, Soc. Econ. Paleontologists and MineralogiE,ts Spec. Pub. 9, p. 66, pl. 32, fig. 22 (not fig. 23). 

The wall is so coarsely arenaceous that chamber 

arrangement is difficult to see. 

Distribution.-Lat 39° to 53° N. This form commonly occurs in the same samples as the smoothwalled form. 

Ammobaculites americanus Cushman 

Haplophragmium fontinense Terquem. Brady, 1884, Challenger Repts., Zoology, v. 9, p. 305, pl. 34, figs. 1-4. 

Ammobaculites americanus Cushman, 1910, U.S. Natl. Mus. 

Bull. 71, pt. 1, p. 117, 118, figs. 184, 185. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 70, pl. 34, figs. 1-4. 

These specimens are similar to those illustrated 

by Brady and by Cushman but are thicker. 

Distribution.-Lat 30° to 56° N., most abundant 

north of lat 50° N. 

Genus AMMOMARGINULINA Weisner, 1931 

Ammomarginulina foliacea (Br~dy) 

Plate 2, figure 6 

Haplophragmium foliaceum Brady, 1881, Micros. Sci. Quart. 

Jour., new ser., v. 21, p. 50. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 304, 

305, pl. 33, figs. 20-25. 

Ammomarginulina foliac.eus (Brady). Cushman, 1933, Cushman Lab. Foram. Research Spec. Pub. 4, pl. 10, fig. 6. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 68, pl. 33, figs. 20-25. 

Specimens are identical with Brady's illustrations. 

Distribution.-Widely distrihuted (lat 39° to 55° 

N.) but rare. Brady ( 1884, p. 305) found only a few 

specimens in the North Pacific. 

Genus PLACOPSILINA d'Orbigny, 1850 

Placopsilina confusa Cushman 

Placopsilina con/usa Cushman, 1920, U.S. Natl. Mus. Bull. 

104, pt. 2, p. 71, pl. 14, fig. 16. 

Heron-Allen and Earland, 1934, Discovery Repts., v. 10, 

Foraminifera, pt. 3, p. 94, 95. 

This tiny form occurs abundantly at several localities. It is commonly attached to diatom frustules. 

Its small size and distinctive reddish-brown color 

distinguish it from P. bradyi Cushman and McCulloch (1939, p. 112). 

Distribution.-Lat 44 o to 50° N. 

Family TEXTULARIIDAE Ehrenberg, 1838 

Genus SPIROPLECT AMMINA Cushman, 1927 

Spiroplectammina biformis (Parker and Jones) 

Plate 2, figure 7 

Textularia agglutinans var. biformis Parker and Jones, 1865, 

Royal Soc. London Philos. Trans., v. 155, p. 370, pl. 

15, figs. 23, 24. 

Spiroplecta bifor.mis (Parker and Jones). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 376, pl. 45, figs. 

25-27. 

Spiroplectammina biformis (Parker and Jones). Cushman, 

1927, Cushman Lab. Foram. Research Contr., v. 3, pt. 

1, p. 23. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 92, pl. 45, figs. 25-27. 

The test is extremely small, fine grained, and 

brown. 

Distribution.-Lat 46° to 54° N. 

Genus BIGENERINA d'Orbigny, 1826 

Bigenerina minutissima Earland 

Plate 2, figure 8 

Bigenerina minutissima Earland, 1933, Discovery Repts., v. 7, 

Foraminifera, pt. 2, p. 98, pl. 3, figs. 36-38. 
SYSTEMATIC CATALOG 17 

Heron-Allen and Earland, 1934, Discovery Repts., v. 10, 

Foraminifera, pt. 3, p. 117, pl. 4, fig. 48. 

Distribution.-Lat. 30° to 48° N., rare. HeronAllen and Earland rarely found the species in deep 

waters of the Scotia Sea (lat 55° to 60° S.). 

Family TROCHAMMINIDAE Schwager, 1877 

Genus TROCHAMMINA Parker and Jones, 1859 

Trochammina grisea Heron-Allen and Earland 

Plate 2, figure 9 

Troc,hammina grisea Heron-Allen and Earland, 1934, Discovery Repts., v. 10, Foraminifera, pt. 3, p. 100, 101, 

pl. 3, figs. 35-37. 

Distribution.-Rare in several stations north of 

lat 47° N. 

Trochammina inftata (Montagu) 

Plate 2, figure 10 

Trochammina inflata (Montagu). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 338, pl. 41, fig. 4. 

Cushman, 1910, U.S. Natl, Mus. Bull. 71, pt. 1, p. 121, 

122, fig. 188. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 84, pl. 41, fig. 4. 

Distribution.-Specimens identical with those 

figured by Brady occur in two core samples, P-38-

61 and P-48-61 (lat 46° and 52° N.). 

T rochammina kellettae Thalmann 

Plate 2, figure 12 

Trochammina peruviana Cushman and Kellett, 1929, U.S. 

Natl. Mus. Proc., v. 75, art. 25, p. 4, pl. 1, fig. 8. 

Trochammina kellettae Thalmann, 1932, Eclogae Geol. Helvetiae, v. 25, p. 313. 

Distribution.-A few specimens found at one locality in the Aleutian Trench (core sample P-41-61, 

lat 50° N., depth 7,230 m). 

Trochammina malovensis Heron-Allen and Earland 

Plate 2, figure 13 

Trochammina malovensis Heron-Allen and Earland, 1932, 

Discovery Repts., v. 4, Foraminifera, pt. 1, p. 345, 

pl. 17, figs. 14-19. 

?Haplophragmium turbinatum var. helicoideum Goes, 1896, 

Harvard Coli. Mus. Comp. Zoology Bull., v. 29, no. 1, p. 

30, 31, pl. 3, figs. 10-13. 

This species is identical with that in Heron-Allen 

and Earland's illustrations. The specimen from core 

sample P-12-61 appears to grade into the pseudochitinous T. cf. T. malovensis (below). 

Distribution.-Present at two stations in the 

Aleutian Trench. 

Trochammina cf. T. malovensis Heron-Allen and Earland 

Plate 2, figure 11 

This species appears identical with T. malovensis 

except in wall character and in its slightly more 

irregular shape. The wall is composed of reddishbrown pseudochitin. However, the last few chambers 

appear finely arenaceous in specimens from core 

sample P-12-61. 

Distribution.-Found abundantly in the Aleutian 

Trench, rarely as far south as lat 33° N. 

T rochammina nana (Brady) 

Plate 2, figure 15 

Haplophragmium nanum Brady, 1881, Micros. Sci. Quart. 

Jour., new ser., v. 21, p. 50. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 311, 

pl. 35, figs. 6-8. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, p't. 1, p. 123, 

figs. 190--192. 

Trochammina nana (Brady). Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 72, pl. 

35, figs. 6-8. 

This small species is variable in number of chambers. It is characteristically dark reddish-brown. 

Distribution.-Abundant in core sample P-49-61 

(lat 50° N., depth 5,000 m). 

T rochammina nitida Brady 

Plate 2, figure 14 

Trochammina nitida Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 52. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 339, 

pl. 41, figs. 5, 6. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spoc. Pub. 9, p. 84, pl. 41, figs. 5, 6. 

Distribution.-Lat 24 o to 52° N. This little species 

is widely distributed but rare. All but one of the 

occurrences described by Brady are shallower than 

390 meters. 

Trochammina globigeriniformis (Parker and Jones) 

Plate 3, figure 1 

Lituola nautiloidea globigeriniformis Parker and Jones, 

1865, Royal Soc. London Philos. Trans., v. 155, p. 407, 

pl. 15, figs. 46, 47. 

Haplophragmium globigeriniforme (Parker and Jones) .. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 312, 

pl. 35, figs. 10, 11. 

Ammoglobigerina bulloides Eimer and Fickert, 1899, Zeitschr. Wiss. Zoologie, Leipzig, v. 65, pt. 4, p. 107. 

Trochammina globigeriniformis (Parker and Jones). Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 124, 125, 

figs. 193-195. 

Ammoglobigerina globigeriniformis (Parker and Jones). 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 72, pl. 35, figs. 10, 11. 

Distribu,tion.-Lat 23° to 54° N. One of the most 

widely distributed forms. Brady (1884, p. 313) listed 

it from six stations in the North Pacific, all but one 

at depths greater than 3,300 meters. Cushman recorded it as one of the most cmnmon deep-water 

species. 
18 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Genus CYSTAMMINA Neumayr, 1889 

Cystammina galeata (Brady) 

Plate 3, figure 2 

Trochammina galeata Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 52. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 344, pl. 

40, figs. 19-23. 

Ammochilostoma galeata (Brady). Cushman, 1910, U.S. Natl. 

Mus. Bull. 71, pt. 1, p. 127, 128, figs. 198-201. 

Cystammina galeata (Brady). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 82, 

pl. 40, figs. 19-23. 

Distribution.-Lat 30° to 55° N., rare. Brady 

noted it as rare and found only at great depth in midocean. 

Genus TRIT AXIS Schubert, 1921 

Tritaxis conica (Parker and Jones) 

Valvulina triangularis var. conica Parker and Jones, 1865, 

Royal Soc. London Philos. Trans., v. 155, p. 406, pl. 

15, fig. 27. 

Valvulina conica Parker and Jones. Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 392, pl. 49, figs. 15, 16. 

Tritaxis conica (Parker and Jones). Barker, 1960, Soc. 

Econ. Paleontologists and Mineralogists Spec. Pub. 

9, p. 100, pl. 49, figs. 15, 16. 

Distribution.-Lat 35° N. 

Family ATAXOPHRAGMIIDAE Schwager, 1877 

Genus GLOBOTEXTULARIA Eimer and Fickert, 1899 

Globotextularia anceps (Brady) 

Haplophragmium anceps Brady, 1884, Challenger Repts .. 

Zoology, v. 9, p. 313, pl. 35, figs. 12-15. 

Globotextularia anceps (Brady). Eimer and Fickert, 1889, 

Zeitschr. Wiss. Zool., v. 65, p. 679. 

Cushman, 1910, U.S. Natl. Mus. Bull. 71, pt. 1, p. 125, 

126, fig. 196. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 72, pl. 35, figs. 12-15. 

Distribution.-A few specimens found in core samples P-41-61 and P-49-61 (lat 50° N.). Brady noted 

it in samples from deep water of the Atlantic but 

not of the Pacific. 

Genus DOROTHIA Plummer, 1931 

Dorothia exilis Cushman 

Plate 3, figure 3 

Gaudryina filaformis Berthelin. Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 380, pl. 46, fig. 12. 

Dorothia exilis Cushman, 1936, Cushman Lab. Foram. Research Spec. Pub. 6, p. 30. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 94, pl. 46, fig. 12. 

These extremely minute forms are probably assignable to the species illustrated by Brady and by 

Cushman. 

Distribution.-Single individuals found in only 

two core samples, P-49-61 and P-52-61. 

Genus EGGERELLA Cushman, 1933 

Eggerella bradyi (Cushman) 

Plate 3, figure 4 

Verneuilina pygmaea (Egger). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 385, pl. 47, figs. 4-7. 

Verneuilina bradyi Cushman, 1911, U.S. Natl. Mus. Bull. 71, 

pt. 2, p. 54, 55, fig. 87. 

Eggerella bradyi (Cushman). Cushman, 1933, Cushman Lab. 

Foram. Res·earch Contr., v. 9, p. 33. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 96, pl. 47, figs. 4-7. 

Distribution.-Lat 37° to 50° N. Brady reported it 

as a common deep-water species, occurring in the 

North Pacific between depths of 3,400 and 5, 700 

meters. 

Eggerella scabra (Williamson) 

Plate 3, figure 5 

Bulimina scabra Williamson, 1858, Recent British foraminifera, p. 65, pl. 5, figs. 136, 137. 

Verneuilina polystropha (Reuss). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 386, pl. 47, figs. 15-17. 

Verneuilina scabra (Williamson). Cushman, 1937, Cushman 

Lab. Foram. Research Spec. Pub. 8, p. 50, pl. 5, figs. 

10, 11. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 96, pl. 47, figs. 15-17. 

Distribution.-Rare, found north of lat 43° N. 

Common in shallow water south of the Aleutian 

Islands. Deep-water forms are smaller and slightly 

less regular in shape. 

Family NUBECULARIIDAE Jones, 1875 

Genus OPHTHALMIDIUM K'ubler and Zwingli, 1870 

Ophthalmidium acutimargo (Brady) 

Spiroloculina acutimargo Brady, 1884, Challenger Repts., 

Zoology, v. 9, p. 154, pl. 10, fig. 13 (not figs. 14, 15). 

Cushman, 1917, U.S. Natl. Mus. Bull. 71, pt. 6, p. 31, 32, 

pl. 1, fig. 1. 

Spirophthalmidium acutimargo (Brady). Cushman, 1927, 

Cushman Lab. Foram. Research Contr., v. 3, pt. 1, p. 

37. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p, 20, pl. 10, fig. 13. 

Distribution.-Rare in one core sample, P-52-61 

(lat 44 o N., depth 5,160 m). 

Ophthalmidium pusillum (Earland) 

Plate 3, figure 7 

Spiroloculina tenuis ( Czjzek). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 152, pl. 10, figs. 9, 10 (not 

figs. 7, 8, 11). 

Spiroloculina pusillum Earland, 1934, Discovery Repts., v. 10, 

Foraminifera, pt. 3, p. 4 7, 48, pl. 1, figs. 3, 4. 

Spirophthalmidium pusillum (Earland). Barker, 1960, Soc. 

Econ. Paleontologists and Mineralogists Spec. Pub. 9, 

p. 20, pl. 10, figs. 9, 10. 

Distribution.-Lat 37° to 41 o N. 
SYSTEMATIC CATALOG 19 

Family MILIOLIDAE Ehrenberg, 1839 

Genus QUINQUELOCULINA Cushman, 1917 

Quinqueloculina sp. 

This species is very tiny and compressed ; the 

sutures are only very slightly depressed. Only a 

single specimen was found. 

Distribution.-Core sample P-38-61 (lat 46 o N., 

depth 5,610 m). 

Genus PYRGO Defrance, 1824 

Pyrgo sp. 

This specimen is possibly referrable to Pyrgo 

murrhyna (Schwager) (1866, Novara Exned., 1857-

1859, Wien, Geol. Theil, Bd. 2, Abt. 2, p. 203, pl. 4, 

fig. 15), but the aperture is broken on the single 

sp,ecimen found. 

Distribution.-Core sample P-16-61 (lat 54° N., 

depth 2,410 m). 

Genus MILIOLINELLA Weisner, 1931 

Miliolinella subrotunda (Montagu) 

Plate 3, figure 8 

Miliolina c,ircularis (Bornemann). Brady, 1884, Challenger 

R,epts., Zoology, v. 9, p. 169, pl. 4, fig. 3; pl. 5, figs. 

13, 14. 

Miliolinella subrotunda (Montagu) Weisner, 1931, Deutsche 

Sudpolar Exped., 1901-1903, v. 20 (Zoology, v. 12), 

p. 107. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 8, 10, pl. 4, fig. 3; pl. 5, figs. 13, 

14. 

Distribution.-Lat 30° to 53° N. Brady's reports 

are from shallow water. However, under Miliolina 

labiosa (d'Orbigny) (Brady, 1884, p. 170) he discusses deep-water specimens very similar toM. subrotunda, which may be the same species discussed 

here. 

Genus AMMOMASSILINA Cushman, 1933 

Ammomassilina alveolinaformis (Millett) 

Spiroloculina asperula Karrer. Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 152, pl. 8, figs. 13, 14. 

Massilina asperula (Karrer). Cushman, 1921, U.S. Natl. Mus. 

Bull. 100, v. 4, p. 447, 448. 

Massilina alveolinaformis .Millett. Cushman, 1928, U.S. Natl. 

Mus. Bull. 104, pt. 6, p. 39. 

Ammomassilina alveolinaformis (Millett). Cushman, 1933, 

Cushman Lab. Foram. Research Contr., v. 9, pt. 2, 

p. 32. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 16, pl. 8, figs. 13, 14. 

Distribution.-One specimen (corroded) found in 

core sample P-29-61 (lat 32° N ., depth 4,810 m). 

Famiy TURRILINIDAE Cushman, 1927 

Genus BULIMINELLA Cushman, 1911 

Buliminella basicostata Parr 

Buliminella elegantissima d'Orbigny var. seminuda Terquem. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 403, 

pl. 1, figs. 23, 24. 

Buliminella basicostata Parr, 1950, Foraminifera, BANZ 

Antarctic Research Exped., 1929-1931, Repts., ser. B, 

v. 5, pt. 6, p. 336, pl. 12, figs. 11, 12. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 104, pl. 50, figs. 23, 24. 

Distribution.-Aleutian Terrace. 

Family BOLIVINITIDAE Cushman, 1923 

Genus BOLIVINA d'Orbigny 

Bolivina robusta Brady 

Bolivina robusta Brady, 1881, Micros. Sci. Quart. Jour., new 

ser., v. 21, p. 57. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 421, pl. 

53, figs. 7-9. 

Cushman, 1911, U.S. Natl. Mus. Bull. 71, pt. 2, p. 36, 37, 

figs. 59, 60. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 108, pl. 53, figs. 7-9. 

Distribution.-One specimen (stained) from core 

sample P-40-61 (lat 50° N., depth 5,500 m). Brady 

described it from generally less than 1,500 meters. 

Bolivina decussata Brady 

Bolivina decussata Brady, 1881, Micros. Sci. Quart. Jour., 

v. 21, no. 5, p. 58. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 406, 

p. 423, pl. 53, figs. 12, 13. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 110, pl. 53, figs. 12, 13. 

Distribution.-Aleutian Terrace. 

Bolivina pseudoplicata Heron-Allen and Earland 

Bolivina plicata Brady, 1870, Ann. Mag. Nat. History, ser. 

4, v. 6, p. 302, pl. 12, fig. 7. 

Bolivina plicata Halkyard, 1889, Manchester Micros. Soc. 

Trans. and Ann. Rept., v. 6, p. 61, pl. 1, fig. 13. 

Bolivina pseudoplicata Heron-Allen and Earland, 1930, Royal 

Micros. Soc. London, ser. 3, v. 50, p. 81, pl. 3, figs. 

36-49. 

Distribution.-Lat 55° to 60° N., occurs only on 

Aleutian Terrace. 

Genus BULIMINA d'Orbigny, 1826 

Bulimina aculeata d'Orbigny 

Plate 3, figure 9 

Bulimina aculeata d'Orbigny, 1826, Annales des Sci. Naturelles, v. 7, no. 7, p. 269. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 406, 

pl. 51, figs. 7-9. 

Cushman, 1911, U.S. Natl. Mus. Bull. 71, pt. 2, p. 86, 87, 

fig. 139. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 104, pl. 51, figs. 7-9. 

Distribution.-Rare in one core sample (P-16-61, 

lat 54 o N., depth 2,410 m). 
20 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Genus GLOBOBULIMINA Cushman, 1927 

Globobulimina auriculata Bailey 

Plate 3, figure 10 

Bulimina auriculata Bailey, 1851, Smithsonian Inst., Contr. 

Knowledge, v. 2, p, 12, pl., figs. 25-27. 

Distr-ibution.-Occurs rarely in core sample P-16-

61 (lat 54 o N., depth 2,410 m). Two of the three 

specimens are stained. 

Globobulimina pacifica Cushman 

Bulimina pyrula d'Orbigny. Brady, 1884, Challenger Repts., 

Zoology, v. 9, p. 339, pl. 50, figs, 7-10. 

Globobulimina pacifica Cushman, 1927, Cushman Lab. Foram. Research Contr., v. 3, p. 67, pl. 14, fig. 12. 

Globobulimina pacifica Cushman?. Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 102, 

pl. 50, figs. 7-10. 

Distribution.-One stained specimen in core sample P-16-61 (lat 54° N., depth 2,410 m). 

Family UVIGERINIDAE Haeckel, 1894 

Genus UVIGERINA d'Orbigny, 1826 

Uvigerina peregrina Cushman 

Plate 3, figure 11 

Uvigerina pygmaea d'Orbigny. Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 575, pl. 74, figs. 11, 12. 

Uvigerina peregrina Cushman, 1923, U.S. Natl. Mus. Bull. 

104, pt. 4, p. 166, pl. 42, figs. 7-11. 

Euuvigerina peregrina (Cushman). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 154, 

pl. 74, figs. 11, 12. 

Distribution.-Several specimens found in core 

sample P-16-61 (lat 54 o N., depth 2,410 m). 

Uvigerina cushmani Todd 

Uvigerina cushmani Todd, 1948, in Cushman and McCulloch, 1948, Allan Hancock Pacific Exped. Repts., v. 6, 

no. 5, p. 257, pl. 33, fig. 1. 

Distribution.-Aleutian Terrace. 

Genus ANGULOGERINA Cushman, 1927 

Angulogerina ftuens Todd 

Angulogerina angulosa (Williamson). Cushman, 1948 [not 

Uvigerina angulosa Williamson], Cushman Lab. Foram. Research Spec. Pub. 23, p. 66, pl. 7, fig. 8. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 576, 

pl. 74, figs. 15, 16. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 154, pl. 75, figs. 15, 16. 

Angulogerina fluens Todd, 1947, in Cushman and Todd, 1947, 

Cushman Lab. Foram. Research Gontr., v. 23, pt. 3, p. 

67, pl. 16, figs. 6, 7. 

Distribution.-Aleutian Terrace. 

Family DISCORBIDAE Ehrenberg, 1838 

Genus EPISTOMINELLA Husezima and Maruhasi, 1944 

Epistominella exigua (Brady) 

Plate 3, figure 12 

Pulvinulina exigua Brady, 1884, Challenger Repts., Zoology, 

v. 9, p. 696, pl. 103, figs. 13, 14. 

Epistominella exigua (Brady). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 212, 

pl. 103, figs. 13, 14. 

Distribution.-Lat 44° to 55° N. This rare form is 

generally stained. According to Brady, it is generaily 

found deeper than 1,800 meters. 

Epistominella umbonifera (Cushman) 

Plate 3, figure 13 

Pulvinulinella umboni/era Cushman, 1933, Cushman Lab. 

Foram. Research Contr., v. 9, pt. 4, p. 90, pl. 9, fig. 9. 

nvt Epistominella? umbonifera (Cushman). Phleger, Parker, 

and Pierson, 1953, Repts. Swedish Deep-sea Exped., 

v. 7, no. 1, p. 43, 44, pl. 9, figs. 33, 34. 

Distribution.-Core sample P-49-61 (la.t 50° N., 

depth 5,000 m). Two stained specimens, identical 

with Cushman's figures, occur at this station. Phleger, Parker, and Pierson's specimens have more numerous chambers. Cushman described the form from 

the South Pacific at a depth of 2,243 meters. 

Family ELPHIDIIDAE Galloway, 1933 

Genus ELPHIDIUM de Montfort, 1808 

Elphidium incertum (Williamson) 

Polystomella umbilicatula var. incerta Wiliamson, 1858, 

Recent British Foraminifera, p. 44, pl. 3, fig. 82a. 

Elphidium incertum (Williamson). Loeblich and Tappan, 

1953, Smithsonian Inst. Misc. Colin., v. 121, no. 7, p. 

100-102. 

Distribution.-This species occurs only in core 

sample P-16-61 (lat 54 o N., depth 2,410 m) north of 

the Aleutian Trench. It appears identical with Williamson's figures. (See discussion in Loeblich and 

Tappan, 1953.) 

Elphidium magellanicum Heron-Allen and Earland 

Elphidium (Polystomella) magellanicum Heron-Allen and 

Earland, 1932, Discovery Repts., v. 4, p. 440, pl. 16, 

figs. 26--28. 

Distribution.-Aleutian Terrace. 

Genus ELPHIDIELLA Cushman, 1936 

Elphidiella groenlandica (Cushman) 

Plate 4, figure 1 

Elphidium groenlandicum Cushman, 1933, Smithsonian Inst. 

Misc. Colin., v. 89, no. 9, p. 4, pl. 1, fig. 10. 

Elphidiella groenlandica (Cushman). Loeblich and Tappan, 

1953, Smithsonian Inst. Misc. Colin., v. 121, no. 7, p. 

106, 107, pl. 19, figs. 13, 14. 

Distribution.-This species is a:bundant in core 

sample P-16-61 (lat 54 o N., depth 2,410 m). Several 

specimens are stained. 

Family GLOBOROTALIIDAE Cushman, 1927 

Geuus GLOBOROTALIA Cushman, 1927 

Globorotalia inftata (d'Orbigny) 

Globigerina inflata d'Orbigny, 1839, in Barker-Webb and 
SYSTEMATIC CATALOG 21 

Berthelot, Histoire Naturelle des l'iles Canaries, v. 

2, pt. 2, Foraminiferes, p. 134, pl. 2, figs. 7-9. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 601, 

pl. 79, figs. 8-10. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 164, pl. 79, figs. 8-10. 

Globorotalia inflata (d'Orbigny). Parker, 1962, Micropaleontology, v. 8, no. 2, p. 236, pl. 5, figs. 6-9. 

Distribution.-One specimen from core sample P26-61 (lat 26° N., depth 5,210 m). 

Family GLOBIGERINIDAE Carpenter, Parker, and Jones, 1862 

Genus GLOBIGERINA d'Orbigny, 1826 

Globigerina bulloides d'Orbigny 

Globigerina bulloides d'Orbigny, 1826, Annals des Sci. Naturelles, ser. 1, v. 7, no. 1. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 593, pl. 

77; pl. 79, figs. 3-7. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 164, pl. 77; pl. 79, figs. 3-7. 

Parker, 1962, Micropaleontology, v. 8, no. 2, p. 221, pl. 1, 

figs. 1-8. 

Distribution.-Lat 23° to 55° N. Rare, often 

col"lroded. 

Genus CANDEINA d'Orbigny in de La Sagra, 1839 

Candeina nitida d'Orbigny 

Candeina nitida d'Orbigny, 1839, in de la Sagra, Histoire 

physique, politique et naturelle de l'ile de Cuba, 

Foraminiferes, p. 108, pl. 2, figs. 27, 28. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 622, pl. 

82, figs. 13-20. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 170, pl. 82, figs. 13-20. 

Parker, 1962, Micropaleontology, v. 8, no. 2, p. 253, pl. 8, 

figs. 27-30. 

Distribution.-One specimen found in core sample 

P-56-61 (lat 39° N., depth 5,400 m). 

Family CIBICIDIDAE Cushman, 1927 

Genus CIBICIDES de Montfort, 1808 

Cibicides bradyi (Trauth) 

Plate 4, figure 2 

Truncatulina dutemplei (d'Obrigny). Brady, 1884, Challenger Re,pts., Zoology, v. 9, p. 665, pl. 95, fig. 5. 

Truncatulina bradyi Trauth, 1918, K. Acad. Wiss. Wien, 

Math.-Naturw. Cl., Denkschr., Wien, v. 95, p. 235. 

Cibicides bradyi (Trauth). Thalmann, 1942, Am. Midland 

Naturalist, v. 28, no. 2, p. 464. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 196, pl. 95, fig. 5. 

Distribution.-Lat 32° to 52° N. Rare but widely 

distributed. Except for a few specimens in core sample P-19-61 (lat 32° N.), all are stained. 

Cibicides lobatulus (Walker and Jacob) 

Cibicides lobatulu.s (Walker and Jacob). Barker, 1960, Soc. 

Econ. Paleontologists and Mineralogists Spec. Pub. 9, 

p. 192, pl. 93, figs., 1, 4, 5. 

Distribution.-Aleutian Terrace. 

Family CASSIDULINIDAE d'Orbigny, 1839 

Genus CASSIDULINA d'Orbigny, 1826 

Cassidulina subglobosa Brady 

Plate 4, figure 3 

Cassidulina subglobosa Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 60. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 430, pl. 

54, fig. 17. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 111, pl. 54, fig. 17. 

This rare form is smaller than that described by 

Brady. The specimens may represent immature 

forms of Brady's species. 

Distribution.-Lat 55° N., depth 4,430 meters. 

One specimen, stained. 

Cassidulina crassa d'Orbigny 

Cassidulina crassa d'Orbigny, 1839, Voyage dans !'Amerique 

Meridionale, v. 5, pt. 5, p. 56, pl. 7, figs. 18-20. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 429-430, 

pl. 54, figs. 4, 5. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 110, pl. 53, figs. 4, 5. 

Distribution.-Aleutian Terrace. 

Cassidulina teretis Tappan 

Cassidulina laevigata d'Orbigny. Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 428, pl. 54, figs. 1-3. 

Cassidulina teretis Tappan, 1951, Cushman Found. Foram. 

Research Contr., v. 2, pt. 1, p. 7, pl. 1, figs. 3a-c. 

Loeblich and Tappan, 1953, Smithsonian Misc. CoHn., v. 

121, no. 7, p. 121, pl. 24, figs. 3, 4. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 110, pl. 53, fig. 1. 

Distribution.-Aleutian Terrace. 

Cassidulina tortuosa Cushman and Hughes 

Cassi4ulina tortuosa Cushman and Hughes, 1925, Cushman 

Lab. Foram. Research Contr., v. 1, p. 14, pl. 2, fig. 4. 

Distribution.-Aleutian Tevrace. 

Genus EHRENBERGINA Reuss, 1850 

Ehrenbergina hystrix Brady 

Plate 4, figure 5 

Ehrenbergina hystrix Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 60. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 434, pl. 

55, figs. 8-11. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 112, pl. 55, figs. 8-11. 

Distribution.-One specimen in core sample P49-61 (lat 50° N., depth 5,000 m). Brady described 

it as occurring rarely only in the deep water of the 

South Pacific. 
22 FORAMINIFERA OF THE NORTH PACIFIC OCEAN 

Family INVOLUTINIDAE Biitschli, 1880 

Genus INVOLUTINA T erquem, 1862 

Involutina tenuis (Brady) 

Plate 4, figure 6 

Ammodiscus tenuis Brady, 1881, Micros. Sci. Quart. Jour., 

new ser., v. 21, p. 51. 

Brady, 1884, Challenger Repts., Zoology, v. 9, p. 332, pl. 

38, figs. 4-6. 

Involutina tenuis (Brady). Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 78, pl. 

38, figs. 5, 6. 

Distribution.-Lat 39° to 53° N. The test is thin 

walled and variable in amount of contortion. 

Family NONIONIDAE Schultze, 1854 

Genus NONION de Montfort, 1808 

Nonion labradoricum (Dawson) 

Plate 4, figure 4 

Nonionina labradorica Dawson, 1860, Canadian Naturalist, 

v. 5, p. 191, fig. 4. 

Nonion labradoricum (Dawson). Loeblich and Tappan, 1953, 

Smithsonian Inst. Misc. Colin., v. 121, no. 7, p. 86, 87, 

pl. 17, figs. 1, 2. 

Distribution.-Only present in core sample P-16-

61 (lat 54 o N., depth 2,410 m), whe1re all specimens 

are stained. It is also present in shallower water 

samples south of the Aleutian Islands. 

Nonion scaphum (Fichtel and Moll) 

Nonionina scaphum (Fichtel and Moll). Brady, 1884, Challenger Repts., Zoology, v. 9, p. 730, pl. 109, figs. 14, 15. 

Nonion scaphum (Fichtel and Moll). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 224, 

pl. 109, figs. 14, 15. 

Distribution.-Aleutian Terrace. 

Genus NONIONELLA Cushman, 1926 

Nonionella turgida (Williamson) 

Plate 4, figure 8 

Rotalina turgida Williamson, 1858, Recent British Foraminifera, p. 50, pl. 4, figs. 95-97. 

Nonionina turgida (Williamson). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 731, pl. 109, figs. 17-19. 

Nonionella turgida (Williamson). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 

224, pl. 109, figs. 17-19. 

Distribution.-Found only in core sample P-16-

61 (lat 54 o N., depth 2,410 m). All specimens are 

stained. 

Nonionella bradyi (Chapman) 

Nonion scapha (Fichtel and Moll). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 224, pl. 109, fig. 16. 

Nonionella bradyi (Chapman). Barker, 1960, Soc. Econ. 

Paleontologists and Mine-ralogists Spec. Pub. 9, p. 224, 

pl. 109, fig. 16. 

Distribution.-Aleutia.n Terrace. 

Nonionella auricula Heron-Allen and Earland 

Nonionella auricula Heron-Allen and Earland, 1930, Royal 

Micros. Soc. London Jour., ser. 3, v. 50, p. 192, pl. 5, 

figs. 68-70. 

Loeblich and Tappan, 1953, Smithsonian Misc. Colin., v. 

121, no. 7, p. 92, 9'3, pl. 16, figs. 6-10. 

Distribution.-Aleutian Terrace. 

Genus PULLENIA Parker and Jones, in Carpenter, Parker, and Jones, 1862 

Pullenia subcarinata (d'Orbigny) 

Plate 4, figure 9 

N onion ina subcarinata d 'Orbigny, 1839, Voyage dans 1' Amerique Meridionale, v. 5, pt. 5, Foraminiferes, p. 28, pl. 

5, figs. 23, 24. 

Pullenia quinqueloba Reuss. Brady, 1884, Challenger Repts., 

Zoology, v. 9, p. 617, pl. 84, figs. 14, 15. 

Pullenia subcarinata (d'Orbigny). Heron-Allen and Earland, 

1932, Discovery Repts., v. 4, Foraminifera, pt. 1, p. 

403, pl. 13, figs. 14-18. 

Barker, 1960, Soc. Econ. Paleontologists and Mineralogists Spec. Pub. 9, p. 174, pl. 84, figs. 14, 15. 

Distribution.-Lat 37° to 53° N. Widely distributed in deep water, generally represented by 

only a few specim·ens, nearly always stained. 

Family ALABAMINIDAE Hofker, 1951 

Genus GYROIDINA d'Orbigny, 1826 

Gyroidina lamarckiana (d'Orbigny) 

Plate 4, figure 7 

Rotalina lamarckiana d'Orbigny, 1839, in Barker-Webb and 

Berthelot, Histoire N aturelle des l'iles Canaries, v. 2, 

pt. 2, Foraminiferes, p. 131, pl. 2, figs. 13-15. 

Gyroidina lamarckiana (d'Orbigny). Phleger, Parker, and 

Pierson, 1953, Repts. Swedish Deep-sea Exped., v. 7, 

pt. 1, p. 40, pl. 8, figs. 33, 34. 

Distribution.-One stained specimen found in core 

sample P-49-61 (lat 50° N., depth 5,000 m). 

Phleger, Parker, and Pierson list this species from 

six stations in the North Atlantic, all deeper than 

4,000 meters. 

Family ANOMALINIDAE Cushman, 1927 

Genus ANOMALINA d'Orbigny, 1826 

Anomalina globulosa Chapman and Parr 

Plate 4, figure 10 

Anomalina grosserugosa (Gumbel). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 673, pl. 94, figs. 4, 5. 

Anomalina globosa Chapman and Parr, 1937, Australasian 

Antarctic Exped., 1911-1914, Sci. Repts., S.er. C, v. 1, 

pt. 2, p. 117, pl. 9, fig. 27. 

Anomalina globulosa Chapman and Parr. Barker, 1960, Soc. 

Econ. Paleontologists and Mineralogists Spec. Pub. 9, 

p. 194, pl. 94, figs. 4, 5. 

A few stained specimens that are apparently ref,errable to this species occur in core sample P-12-

61, although the sutures are less distinct and the 

outline is smooth. 

Distribution.-Lat 53° N., depth 6,560 meters. 
SYSTEMATIC CATALOG 23 

Genus CIBICIDOIDES Thalmann, 1939 

Cibicidoides cf. C. mundulus _(Brady, Parker, and Jones) 

Plate 4, figure 13 

Truncatulina sp. Brady, 1884, Challenger R·epts., Zoology, v. 

9, pl. 95, fig. 6. 

Cibicides mundulus (Brady, Parker, and Jones). Chapman 

and Parr, 1937, Australasian Antarctic Exped., Sci. 

Repts., Ser. C, v. 1, pt. 2, p. 120. 

Cibicidoides mundulus (Brady, Parker, and Jones). Barker, 

1960, Soc. Econ. Paleontologists and Mineralogists 

Spec. Pub. 9, p. 196, pl. 95, fig. 6. 

This form appears identical to that illustrated by 

Brady, except for its small siz.e. The single specimen 

found was stained. 

Distribution.-Lat 50° N., depth 5,000 meters. 

Genus MELONIS de Montfort, 1808 

Melonis affine (Reuss) 

Plate 4, figure 12 

Nonionina affinis Reuss, 1851, Deutsche Geol. Gesell. Zeitschr., v. 3, p. 72, pl. 5, fig. 32. 

Nonionina umbilacatula (Montagu). Brady, 1884, Chal-

. Zenger Repts., Zoology, v. 9, p. 726, pl. 109, figs. 8, 9. 

Nomon affine (Reuss). Boltovskoy, 1958, Micropaleontology, 

v. 4, p. 193-200. 

Gavelinonion barleeanum (Williamson). Barker, 1960, So·c. 

Econ. Paleontologists and Mineralogists Spec. Pub. 9, 

p. 224, pl. 109, figs. 8, 9. 

Distribution.-One small stained spc:cimen found 

(core sample P-49-61, lat 50° N., depth 5,000 m). 

Melonis pompilioides (Fichtel alld Moll) 

Plate 4, figure 11 

Nautilus pompilioides Fichtel and Moll, 1798, Testacea Microsoopica, p. 31, pl. 2, figs. a-c. 

Nonionina pompilioides (Fichtel and Moll). Brady, 1884, 

Challenger Repts., Zoology, v. 9, p. 727, pl. 109, figs. 

10, 11. 

Nonion? pompilioides (Fichtel and Moll). Barker, 1960, Soc. 

Econ. Paleontologists and Mineralogists Spec. Pub. 9, 

p. 224, pl. 109, figs. 10, 11. 

Distribution.-One specimen found in core sample 

P-29-61 (lat 32° N., depth 4,810 m). It is very small 

but is referred to N. pompilioides because of its 

thickness and coarsely perforate wall. 

Family CERATOBULIMINIDAE Cushman, 1927 

Genus HOEGLUNDINA Brotzen, 1948 

Hoeglundina elegans ( d'Orbigny) 

Rotalia elegans d'Orbigny, 1826, Annals Sci. Naturelles, ser. 

1, v. 7, no. 6, p. 272. 

Pulvinulina elegans (d'Orbigny). Brady, 1884, Challenger 

Repts., Zoology, v. 9, p. 699, pl. 105, figs. 3-6. 

Hoglundina elegans (d'Orbigny). Barker, 1960, Soc. Econ. 

Paleontologists and Mineralogists Spec. Pub. 9, p. 216, 

pl. 106, figs. 3-6. 

Distribution.-Lat 32° to 54° N. All specimens are 

small and, when not stained, appear corroded. 

REFERENCES CITED 

Barker, R. W., 1960, Taxonomic notes on the sp.ecies figured 

by H. B. Brady in his report on the Foraminifera 

dredged by HMS Challenger during the years 1873 to 

1876: Soc. Econ. Paleontologists and Mineralogists 

Spec. Pub. 9, 240 p. 

Brady, H. B., 1884, R·eport on the Foraminifera dredged by 

HMS Challenger during years 1873-1876: Challenger 

Repts., Zoology, v. 9, p. i-xxi, 1-814. 

Bukry, David, Douglas, R. G., Kling, S. A., and Krashininnikov, Valeri, 1971, Planktonic microfossil biostratigraphy of the northwestern Pacific Ocean: Deep Sea 

Drilling Proj. Initial Repts., v. 6, p. 1253-1300. 

Cushman, J. A., and McCulloch, Irene, 1939, A report on 

some arenaceous Foraminifera: Univ. Southern California, Allan Hancock Pacific Exped. Repts., v. 6, no. 1, 

113 p. 

Krashininnikov, V. A., 1971, Cenozoic Foraminifera: Deep 

Sea Drilling Proj. Initial Repts., v. 6, p. 1055-1068. 

Lisitzen, A. P., 1971, Distribution of carbonate microfossils 

in suspension and in bottom sediments; The micropaleontology of oceans: Cambridge Univ. Press, p. 197-218. 

Olson, R. K., and Goll, R., 1970, Biostratigraphy: De·ep Sea 

Drilling Proj. Initial Repts., v. 5, p. 557-567. 

Revelle, Roger, 1944, Marine bottom samples collected in the 

Pacific Ocean by the Carnegie on its seventh cruise: Carnegie Inst. Washington Pub. 556, 180 p. 

Riedel, W. R., and Funnell, B. M., 1965, Tertiary sediment 

cores and microfossils from the Pacific Ocean floor: 

Geol. Soc. London Quart. Jour., v. 120, p. 305-368. 

Page 

A 

abyssorum, Rhabdammina ---------- 6, 1S 

Acknowledgments ------------------ 4 

aculeata, Bulimina ------------- 6, 19; pl. 3 

acuta, Jaculella ------ 6, 8, 9, 10, 11, 12; pl. 1 

acutimargo, Ophthalmidium ----- 6, 9, 11, 18 

Spiroloculi-Ha ------------------ 18 

Spirophthalmidium -------------- 18 

Adercotryma 

glomerata --------------------- 6, 14 

glomeratum ----- 8, 9, 10, 11, 12, 14; pl. 1 

advena, EggereUa ------------------ 10 

affine, MeloniB --------------- 6, 9, S3; pl. 4 

Nonion ----------------------- 23 

affiniB, Bulimina ------------------ 11 

Nonionina -------------------- 23 

agglutinans, Ammobaculites ___ 6, 9, 16; pl. 2 

bi!ormis, Textularia ------------ 16 

fila!ormis, Ammobaculites_ 6, 8, 10, 16; pl. 2 

Haplophragmium --------------- 16 

Spirolina --------------------- 16 

Alabaminidae --------------------- 22 

Aleutian Islands ------------------ 6 

Aleutian Terrace ------------------

Aleutian Trench ------------------ 1, 6, 7 

alveolinaformis, Ammomassilina ----- 6, 19 

Massilina --------------------- 19 

Alveolophragmium nitidum ---------- 6, 

8, 9, 10, 11, 12, 15; pl. 1 

ringens ----------------- 6, 8, 9, 10, 15 

scitulum ------------ 6, 8, 9, 12, 15; pl. 1 

subglobosum _ 6, 7, 8, 9, 10, 11, 12, 15; pl. 1 

weisneri ------------ 6, 8, 9, 10, 15; pl. 2 

sp ------------------------ 6, 15; pl. 2 

americanus, Ammobaculites _ 6, 8, 9, 10, 12, 16 

A mmobaculites -------------------- 16 

agglutinans ------------- 6, 9, 16; pl. 2 

filaformis --------- 6, 8, 10, 16; pl. 2 

americanus -------- 6, 8, 9, 10, 11, 12, 16 

filaformiB --------------- 6, 8, 9, 10, 11 

Ammochilostoma galeata ------------ 18 

Ammodiscidae --------------------- 13 

Ammodiscus gordialis -------------- 13 

tenuiB ------------------------ 22 

Ammoglobigerina bulloides ----------- 17 

globigerini!ormis --------------- 17 

Ammomarginulina ------------------ 16 

foliacea -------------- 6, 8, 10, 16; pl. 2 

foliaceus ---------------------- 16 

Ammomassilina -------------------- 6,19 

alveolinaformis ---------------- 6, 19 

Ammoscalaria tenuimargo ----------- 10, 11 

amygdaliformis, Loxostomum -------- 7 

anceps, Globotextularia ------------ 6, 9, 18 

Haplophragmium --------------- 18 

Angulogerina --------------------- SO 

angulosa --------------------- 6, 7, 20 

fluens ------------------------ SO 

angulosa, Angulogerina ------------ 6, 7, 20 

Uvigerina --------------------- 20 

Anomalina ----------------------- 2B 

globosa ----------------------- 22 

globulosa ------------------ 6, 22; pl. 4 

grosserugosa ------------------- 22 

INDEX 

[Italic page numbers indicate major referen~es] 

Anomalinidae ----------------------

arctica, Labrospira -----------------

Aschemonella sp ------------------

Page 

ss 

15 

9 

asperula, Massilina ----------------- 19 

Spiroloculina ------------------ 19 

Astrorhiza ------------------------ 8 

sp --------------------------- 10, 11 

Astrorhizidae 12 

Ataxophragmiidae ----------------- 18 

atlantica, Pseudogaudryina ---------- 6, 7 

auricula, NonioneUa -------------- 6, 7, 22 

auriculata, Bulimina ------------ 8, 20; pl. 3 

Globobulimina ------------- 6, 20; pl. 3 

B 

Baculogypsina -----------~---------

sp ---------------------------

8, 9 

10 

barleeanum, Gavelinonion ----------- 23 

bartletti, Elphidium ---------------- 7, 8 

basicostata, Buliminella ----------- 6, 7, 19 

Bathysiphon ---------------------- 12 

discreta ------------------- 6, 12; pl. 1 

Bibliography ---------------------- 23 

bijormiB, Spiroplecta --------------- 16 

Spiroplectammina ---- 6, 8, 9, 10, 16; pl. 2 

Textularia agglutinans ---------- 16 

Bigenerina ------------------------ 16 

minutissima ----------- 6, 9, 10, 16; pl. 2 

Bolivina 19 

decussata -------------------- 6, 7, 19 

plicata ----------------------- 19 

pseudoplicata ---------------- 6, 7, 19 

robusta --------------------- 6, 10, 19 

Bolivinitidae ---------------------- 19 

bradyi, Cibicides -------- 6, 8, 9, 11, 21; pl. 4 

Cyclammina ------------------- 14 

Eggerella _____ 6, 8, 9, 10, 11, 12, 18; pl. 3 

Eponides ---------------------- 9 

Nonionella ------------------- 6, 7, 2S 

Placopsilina ----------------- 9, 10, 16 

Truncatulina ------------------- 21 

V erneuilina 

Buccella frigida 

18 

7 

inusitata ---------------------- 7 

Bulimina ------------------------- 19 

aculeata ------------------- 6, 19; pl. 3 

affiniB ------------------------ 11 

auriculata ----------------- 8, 20; pl. 3 

mexicana ---------------------- 8 

pyrula ------------------------ 20 

scabra ------------------------ 18 

Buliminella ------------------------ 19 

basicostata ------------------- 6, 7,19 

elegantissima 7 

seminuda ------------------ 19 

bulloides, Ammoglobigerina ---------- 17 

Globigerina ------------ 6, 7, 8, 9, 11, f&l 

0 

canariensis, Haplophragmoides ------- 7, 8 

cancellata, Cyclammina ------------- 6, 

9, 10, 11, 12, 14; pl. 1 

Candeina ------------------------- 21 

nitida ----------------------- 6, 9, 21 

Page Cassidulina ___________ .. ___________ S1 

crassa --------------------- 6, 7, 8, 21 

laevigata --------------------- 21 

subglobosa ------------ 6, 8, 11, 21; pl. 4 

teretiB ---------------------- 6, 7, 21 

tortuosa ---------------------6 , 7, 21 

Cassidulinidae --------------------- 21 

Ceratobulimi.nidae ------------------ 23 

charlottenis, Trochammina. ---------- 10 

Cibicides ------------------------- 21 

bradyi ------------- 6, 8, 9, 11, 21; pl. 4 

lobatulus ---------'------------ 6, 7, !J1 

mundulus --------------------- 23 

refulgens --------------------- 6, 7 

Cibieididae ------------------------ 21 

Cibicidoides ----------------------- 23 

mundulus --------------- 6, 9, 23; pl. 4 

circularis, Miliolinella -------------- 11, 19 

clavatum, Elphidium --------------- 7, 11 

Colomia sp ----------------------- 11 

complanata, Virgulina -------------- 6, 7 

confusa, Placopsilina ---------- 6, 11, 12, 16 

conica, TritaxiB ----------------- 6, 10, 18 

Valvulina --------------------- 18 

triangularis ---------------- 18 

Cornuspira incerta ---------------- 8, 9 

involvens ---------------------- 9 

costulata, Guembelina -------------- 11 

crassa, Cassidulina ------------- 6, 7, 8, 21 

crispum, Elphidium ---------------- 7 

cushmani, Uvigerina -------------- 6, 7, 20 

Cyclamminp, ------~---------------- 14 

bradyi ------------------------ 14 

cancellata ------- 6, 9, 10, 11, 12, 14; pl. 1 

trullissata -------- 6, 8, 9, 10, 11, 14; pl. 1 

sp --------------------------- 9 

cylindrica, Hyperammina ------- 9, 10, 11, 13 

Marsipella --------------- 6, 9, 12; pl. 1 

Cystammina 18 

galeata 7, 8, 10, 11, 18; pl. 3 

D 

decussata, Bolivina --------------- 6, 7,19 

dentalinaformiB, Reophax ----------- 6, 

8, 9, 11, 12, 13; pl. 1 

Diatoms ,-------------------------- 3 

diffiugiformis, Proteonina ----------- 13 

Reophax ------ 6, 8, 9, 10, 11, 12, 13; pl. 1 

Diseorbidae ----------------------- 20 

Discorbis 9 rosea --------------------

discreta, Bathysiphon --------·--- 6, 12; pl. 1 

PsammosiphoneUa -------------- 12 

Rhabdammina ----------------- 12 

distans, Reophax ------------ 6, 10, 13; pl. 1 

Dorothia ----------------------- 18 

exiliB ------------·------ 6,9,1~pl 3 dutemplei, Truncatulina 

E 

Eggerella 

advena -----------------------

21 

18 

10 

bradyi -------- 6, 8, 9, 10, 11, 12. 18; pl. 3 

fusca ------------------------- 10 

propinqua -------------------- Pl. 3 

scabra ---------------- 6, 7, 9,18; pl. 3 

25 
26 

Page 

Ehrenbergina ---------------------- f1 

hystri:x: ----------------- 6, 9, 21; pl. 4 

elegans, Hoeglundina ----------- 8, 9, 11, 29 

Pulvinulina -------------------- 23 

Rotalia ----------------------- 23 

elegantissima, BulimineUa ----------- 7 

seminuda, Buliminella ----------- 19 

ElphidieUa ------------------------ 20 

groenlandica ------------- 6, 8, 20; pl. 4 

Elphidiidae ----------------------- 20 

Elphidium ------------------------ 20 

bartletti ---------------------- 7, 8 

clavatum ---------------------- 7, 11 

crispum ---------------------- 7 

groenlandicum ----------------- 20 

incertum 6, 20 

mageUanicum ----------------- 6, 7, 20 

orbiculare _____ ,________________ 7 

(PolystomeUa) mageUanicum ----- 20 

sp --------------------------- 7 

Environment, North Pacific --------- 6 

EpistomineUa --------------------- 20 

e:x:igua ---------------- 6, 7, 9, 20; pl. 3 

umbonifera -------------- 6, 9, 20; pl. 3 

Eponides bradyi ------------------- 9 

sp --------------------------- 8,11 

Euuvigerina peregrina -------------- 20 

e:x:centricus, Reopha:x: ------------ 6, 8, 9, 10 

e:x:igua, Epistominella ------- 6, 7, 9, 20; pl. 3 

Pulvinulina -------------------- 20 

e:x:ilis, Dorothia 6. 9, 18; pl. 3 

F 

filaformis, Ammobaculites ------ 6, 8, 9, 10, 11 

Ammobaculites agglutinans ------ 6, 

8, 10, 16; pl. 2 

Gaudryina --------------------- 18 

Fissurina sp ---------------------- 6, 7 

fiuens, Angulogerina ---------------- 20 

foliacea, Ammomarginulina __ 6, 8, 10, 16; pl. 2 

foliaceum, Haplophragmium --------- 16 

foliaceus, Ammomarginulina --------- 16 

fontinense, Haplophragmium -------- 16 

Foraminifera --------------------- 3 

friabilis, Hyperammina ----- 8, 9, 10, 13; pl. 1 

frigida, Buccella ------------------ 7 

fusca, Eggerella ------------------- 10 

Psammosphaera 10 

galeata, Ammochilostoma ----------- 18 

Cystammina ----- 7, 8, 10, 11, 17, 18; pl. 3 

Trochammina ------------------ 18 

Gaudryina filaformis ---------------- 18 

Gavelinonion barleeanum ----------- 23 

Globigerina ----------------------- 21 

bulloidea -------------- 6, 7, 8, 9, 11, 21 

infiata ------------------------ 11 

pachyderma ------------------- 8 

Globigerinidae --------------------- 21 

globigeriniforme, Haplophragmium ___ 17 

globigeriniformis, Ammoglobigerina ___ 17 

Lituola nautiloidea ------------- 17 

Trochammina ----- 7, 8, 9, 10, 11, 17; pl. 3 

Globigerinita voluta ---------------- 11 

Globobulimina ------------------- 20; pl. 3 

auriculata ----------------- 6, 20; pl. 3 

pacifica --------------------- 6, 8, 20 

Globorotalia ----------------------- fO 

infiata ------------------------ 6,20 

Globorotaliidae --------------------- 20 

globosa, Anomalina ---------------- 22 

Globote:x:tularia -------------------- 18 

anceps ---------------------- 6,9,18 

sp --------------------------- 10 

INDEX 

Page 

Globotruncana marginata __ ,_________ 11 

sp --------------------------- 11 globulifera, Hormosina __ 6, 9, 10, 11, 12, 18, 14 

globulosa, Anomalina ----------- 6, f2; pl. 4 

glomerata, Adercotryma ------------ 6, H 

Lituola ----------------------- 1* 

glomeratttm, Adercotryma ----------- 8, 

9, 10, 11. 12, 14: pl. 1 Glomospira __ ,_____________________ 19 

gordialis ------ 6, 8, 9, 10, 11, 12, 19; pl. 1 

gordialis, Ammodiscus -------------- 13 

Glomospira ____ 6, 8, 9, 10, 11, 12, 13; pl. 1 

Gordiammina ------------------ 13 

Trochammina squamata --------- 13 

Gordiammina gordialis -------------- 13 

grisea, Trochammina ____ 7, 8, 9, 10, 17; pl. 2 

groenlandica, Elphidiella ------ 6, 8, 20; pl. 4 

groenlandicum, Elphidium ----------- 20 

grosserugosa, Anomalina ------------ 22 

Guembelina costulata --------------- 11 

globulosa ---------------------- 11 sp __ ,_________________________ 11 

Gyroidina ------------------------- 22 

lamar~kiana ------------- 6, 9, 22; pl. 4 

H 

H aplophragmium agglutinans 

anceps --------------~---------

foliaceum ---------------------

fontinense ---------------------

globigeriniforme ----------------

latidorsatum ------------------

nanum ----------------------- nitidum -----------------------

scitulum ----------------------

tur!Jinatum helicoideum --·--------

Haplaphragmoides canariensis -------

nitida ------------------------ nitidum 

nitidus 

ringens -----------------------

subglobosum -------------------

helicoideum, H aplophragmium 

turbinatum -------------

Hoeglundina ----------------------

16 

18 

16 

16 

17 

15 

17 

15 

15 

17 

7, 8 

7, 8 

15 

15 

15 

15 

17 

29 

elegans ------------------- 8, 9, 11, 29 

Hormosina ------------------------ 19 

globulifera -------- 6, 9, 10, 11, 12, 18, 14 

normant ---------------------- 10 

Hormosinidae --------------------- 18 

Hyperammina --------------------- 11, 12 

cylindrica ---------------- 9, 10, 11, 13 

friabilis -------------- 8, 9, 10, 13; pl. 1 

BPP ------------------------ 6,11,12 

hystrix, Ehrenbergina --------- 6, 9, 21; pl. 4 

incerta, Cornuspira ---------------- 9 

Polystomella umbilicatula -------- 20 

incertum, Elphidium --------------- 6, 20 

infiata, Globigerina ----------------- 11 

Globorotalia ------------------- 6, 20 

Trochammina ----------- 7, 10,17; pl. 1 

inusitata, Buccella ----------------- 7 

lnvolutina ------------------------ 22 

tenuis -------------- 6, 8, 9, 10, 22; pl. 4 

Involutinidae ---------------------- 22 

involvens, Cornuspira --------------- 9 

JK 

Jaculella ------------------------- 12 

acuta ----------- 6, 8, 9, 10, 11, 12; pl. 1 

kellettae, Trochammina --------- 7,17; pl. 2 

Page 

Kodiak Harbor ------------------"-- 7 

Kodiak Island 7 

L 

labiosa, Miliolina ------------------ 19 

labradorica, Nonionina ------------- 22 

labradoricum, Nonion ---- 6, 7, 8,11, 22; pl. 4 

Labrospira arctica ----------------- 15 

subglobosa --------------------- 15 

weisneri ---------------------- 15 

laevigata, Cassidulina -------------- 21 

Lagena spp ---------------------- 7 

lamarckiana, Gyroidina ------- 6, 9, 22; pl. 4 

Rotalina ---------------------- 22 

latidorsatum, Haplophragmium ------ 15 

linearis, Oculosiphon --------------- 7, 8 

lingua, Pseudopolymorphina --------- 7 

Lituola glomerata ------------------ 14 

nautiloidea globigeriniformis ----- 17 

Lituolidae ------------------------ H 

lobatulus, Cibicides --------------- 6, 7, 21 

Lo:x:ostomum amygdaliformis --------- 7 

M 

magellanicum, Elphidium ---------- 6, 7, 20 

Elphidium (Polystomella) -------- 20 

malovensis, Trochammina ----- 7, 15, 17; pl. 2 

marginata, Globotruncana ----------- 11 

Marsipella ------------------------ 12 

cylindrica --------------- 6, 9, 12; pl. 1 

Massilina alveolinaformis ----------- 19 

asperula ---------------------- 19 

Melonis --------------------------- 28 

affine ------------------- 6, 9, 29; pl. 4 

pompilioides ------------ 6, 11, 28; pl. 4 

membranaceum, NodeUum -------- 7, 8; pl. 1 

mexicana, Bulimina ---------------- 8 

Miliolidae ------------------------- 19 

Miliolina labiosa ------------------- 19 

Miliolinella ----------------------- 11, 19 

circularis --------------------- 11, 19 

subrotunda ------ 6, 8, 9<, 10, 11, 19; pl. 3 

minutissima, Bigenerina ____ 6, 9, 10, 16; pl. 2 

mundulus, Cibicides ----------------- 23 

Cibicidoides -------------- 6, 9, 23; pl. 4 

N 

nana, Trochammina ---------- 7, 9, 17; pl. 2 

nanum, Haplophragmium ----------- 17 

nautiloidea globigeriniformis, Lituola__ 17 

Nautilus pompilioides --------------- 23 

nitida, Candeina ------------------ 6, 9, 21 

Haplaphragmoides -------------- 7, 8 

Trochammina ---- 7, 9, 10, 11, 12,17; pl. 2 

nitidum, Alveolophragmium --------- 6, 

8, 9, 10, 11, 12, 15; pl. 1 

Haplophragmium --------------- 15 

Haplaphragmoides -------------- 15 

nitidus, Haplaphragmoides ---------- 15 

Nodellum membranaceum -------- 7, 8; pl. 1 

nodulosa, Reophax ----------------- 14 

nodulosus, Reopha:x: ___ 6, 8, 9, 10, 12, 14; pl. 1 

Nonion --------------------------- 22 

affine ------------------------- 23 

labradoricum -------- 6, 7, 8,11, 22; pl. 4 

pompilioides ------------------- 23 

scapha ----------------------- 22 

scaphum --------------------- 6,7,22 

sp --------------------------- 9, 10 

Nonionella ------------------------ 22 

auricula --------------------- 6, 7, 22 

bradyi ----------------------- 6,7,22 

turgida ----------------- 6, 8, 22; pl. 4 

Nonionidae ----------------------- 22 
Nonionina, a,f!inis ------------------

la,bradorica, --------------------

pompilioides -------------------

sca,phum ----------------------

subca,rina,ta, --------------------

turgida, -----------------------

umbila,ca,tula, ------------------

norma,ni, Hormosina, ---------------

North Pacific environment ----------

Nubeculariidae --------------------

0 

Page 

23 

22 

23 

22 

22 

22 

23 

10 

6 

18 

Oculosiphon linea,riB --------------- 7, 8 

Ophtha,lmidium -------------------- 18 

a,cutima,rgo --------------- 6, 9, 11, 18 

pusillum --------------- 6, 10, 18; pl. 3 

orbicula,re, Elphidium -------------- 7 

Orbulina, universa, ----------------- 8 

p 

pa,chyderma,, Globigerina, ------------ 8 

pacifica, Globobulimina ------------ 6, 8, 20 

papillata, Thurammina -------- 13, 16; pl. 1 

pauciloculata, Virgulina ------------- 8 

peregrina, Euuvigerina ------------- 20 

Uvigerina ------------ 6, 8, 11, 20; pl. 3 

peruviana, Trochammina ------------ 17 

pilulifer, Reophaa; ---------------- 6, 8, 14 

pilulifera, Reophaa; ---------------- 14 

Pioneer, U.S. Coast and Geodetic 

Survey ship ~----------

Placopsilina ----------------------- 16 

bradyi ---------------------- 9,10,16 

confusa, ------------------ 6, 11, 12, 16 

Plain, deep-sea -------------------- 7 

plicata, Bolivina ------------------- 19 

Polystomella umbilicatula 

incerta ----------------- 20 

(Polystomella) ma,geUanicum, 

Elphidium -------------- 20 

polystropha, Verneuilina ------------ 18 

pompilioides, MeloniB -------- 6, 11, 23; pl. 4 

Nautilus ---------------------- 23 

Nonion ----------------------- 23 

Nonionina --------------------- 23 

propinqua, Eggerella --------------- Pl. 3 

Proteonina dijfiugiformis ------------ 13 

PsammosiphoneUa diBcreta ---------- 12 

sp ------------------- 7,8,9,10,11,12 

Psammosphaera ------------------- 13 

fusca ----------------------- 10 

rustica ----------------------- 6, 13 

Pseudogaudryina atlantica ----------- 6, 7 

sp --------------------------- 7 

pseudoplicata, Bolivina ------------ 6, 7,19 

Pseudopolymorphina lingva ---------- 7 

PuUenia -------------------------- 22 

quinqueloba -------------------- 22 

subcarinata ------ 6, 8, 9, 10, 11, 22; pl. 4 

Pulvinulina elegans ---------------- 23 

ea;igua ------------------------ 20 

Pulvinulinella umboni/era ----------- 20 

pusillum, Ophthalmidium ----- 6 .. 10, 18; pl. 3 

Spiroloculina ------------------ 18 

Spirophthalmidium ------------- 18 

pygmaea, Uvigerina ---------------- 20 

Verneuilina ------------------- 18 

Pyrgo ---------------------------- 19 

sp -------------------------- 6,8,19 

pyrula, Bulimina ------------------ 20 

Q 

quinqueloba, Pullenia 22 

INDEX 

Quinqueloculina 

Page 

19 

sp -------------------------6,10,19 

R 

Radiolaria 3 

refulgens, Cibicides ---------------- 6, 7 

Reophaa; ---------------------- 11,12,13 

dentalinaformis ___ 6, 8, 9, 11, 12, 13; pl. 1 

diffiugiformis __ 6, 8, 9, 10, 11, 12, 13; pl. 1 

distans ----------------- 6, 10, 13; pl. 1 

ea;centricus ----------------- 6, 8, 9, 10 

nodulosa ---------------------- 14 

nodulosus -------- 6, 8, 9, 10, 12, 14; pl. 1 

pilulifer --------------------- 6, 8, 14 

pilulifera --------------------- 14 

scorpiurus ------------ 6, 9, 10, 14; pl. 1 

scotti ----------------------- 6, 8, H 

sp --------------------------- 12 

Rhabdammina -------------------- 12 

abyBBorum -------------------- 6, 12 

diBcreta ----------------------- 12 

sp -------------------------9,10,11 

Rhizammina ---------------------- 12 

sp --------------------- 6, 8, 12; pl. 1 

ringens, Alveolophragmium ___ 6, 8, 9, 10, 15 

Haplaphragmoides -------------- 15 

Trochammina ------------------ 15 

robusta, Bolivina ---------------- 6, 10, 19 

Rosalina sp ---------------------- 6, 7 

rosea, DiBcorbiB -------------------- 9 

Rotalia elegans -------------------- 23 

Rotalina lamarckiana -------------- 22 

turgida ----------------------- 22 

rustica, Psammosphaera 6,18 

s 

Saccammina ---------------------- 18 

sphaerica ----------------- 6, 9, 10, 18 

sp -------------------------- 12 

Saccamminidae -------------------- 13 

Sample collection ----------------- 1 

Sampling procedure ---------------- 6 

scabra, Bulimina ------------------ 18 

Eggerella -------------- 6, 7, 9, 18; pl. 3 

Verneuilina -------------------- 18 

scapha, Nonion -------------------- 22 

scaphum, Nonion ----------------- 6, 7, 22 

Nonionina -------------------- 22 

scitulum, Alvelophragmium_ 6, 8, 9, 12, 15; pl. 1 

Haplophragmium --------------- 15 

scorpiurus, Reophaa; ------- 6, 9, 10, 14; pl. 1 

scotti, Reophax ------------------ 6, 8, 14 

seminuda, BulimineUa elegantiBsima ___ 19 

sphaerica, Saccammina --------- 6, 9, 10, 13 

Spirolina agglutinans -------------- 16 

Spiroloculina acutimargo ------------ 18 

asperula ---------------------- 19 

pusiUum ---------------------- 18 

tenuis ------------------------ 18 

sp --------------------------- 11 

Spirophthalmidium acutimargo ------- 18 

pusiUum ---------------------- 18 

Spiroplecta biformiB ---------------- 16 

Spiroplectammina ------------------ 16 

biformiB ------------ 6, 8, 9, 10, 16; pl. 2 

squamata, gordialis Trochammina ----- 13 

subcarinata, Nonionina ------------- 22 

PuUenia --------- 6, 8, 9, 10, 11, 22; pl. 4 

subglobosa, Cassidulina ----- 6, 8, 11, 21; pl. 4 

Labrospira -------------------- 15 

subglobosum Alveolophragmium ------ 6, 

7, 8, 9, 10, 11, 12,15; pl. 1 

Haplaphragmoides -------------- 15 

subrotunda, Miliolinella_ 6, 8, 9, 10, 11, 19; pl. 3 

27 

Page 

T 

tenuimargo, Ammoscalaria ---------- 10, 11 

tenuiB, Ammodiscus ---------------- 22 

Involutina ---------- 6, 8, 9,10, 22; pl. 4 

Spiroloculina ------------------ 18 

teretis, Cassidulina --------------- 6, 7, 21 

Tea;tularia agglutinans biformis ------ 16 

Textulariidae 16 

Thurammina --------------------- 8, 9, 18 

papillata ------------------ 6, 13; pl. 1 

tortuosa, Cassidulina ------------ 6, 7, 21 

triangularis, conica Valvulina -------- 18 

Tritaxis ---·----------------------- 18 

conica ---------------------- 6, 10, 18 

Trochammina ------------------- 9, 10, 17 

charlottenis ------------------- 10 

galeata ----------------------- 18 globigeriniformis __ 7, 8, 9,10, 11. 17; pl. 3 

griBea -------------- 7, 8, 9, 10,17; pl. 2 

inftata ----------------- 7, 10, 17; pl. 2 

keUettae ------------------ 7,17; pl. 2 

malovensis -------------- 7, 15,17; pl. 2 

nana ------------------- 7,9,17;pl.2 

nitida ----------- 7, 9, 10,11, 12, 17; pl. 2 

peruviana --------------------- 17 

ringens ----------------------- 15 

squama,ta gordialis ------------- 13 

trullissata --------------------- 14, 15 

sp -------------------------- 7, 8,11 

Trochamminidae ------------------- 17 

trullissata, Cyclammina_ 6, 8, 9, 10, 11, H; pl. 1 

Trochammina ----------------- 14, 15 

Truncatulina bradyi ---------------- 21 

dutemplei --------------------- 21 

sp --------------------------- 23 

turbinatum helicoideum, 

Haplophragmium -------- 17 

turgida,, Nonionella ----------- 6, 8, 22; pl. 4 

Nonionina --------------------- 22 

Rotalina ---------------------- 22 

Turrilinidae 19 

u 

umbilacatula, Nonionina ------------ 23 

umbilicatula incerta, PolystomeUa ---- 20 

umbonifera, Epistominella ----- 6, 9, 20; pl. 3 

Pulvinulinella ------------------ 20 

universa, Orbulina ----------------- 8 

Uvigerina ------------------------ 20 

angulosa ---------------------- 20 

cushmani -------------------- 6, 7, 20 

peregrina _____________ 6, 8, 11, 20; pl. 3 

pygmaea ---------------------- 20 

Uvigerinidae ---------------------- 20 

v 

Valvulina conica 

triangularis conica -------------

Verneuilina bradyi -----------------

polystropha --------------------

pygmaea ----------------------

scabra ------------------------ Virgulina complanata --------------

pauciloculata ------------------

voluta, Globigerinita ---------------

w 

18 

18 

18 

18 

18 

18 

6, 7 

8 

11 

weisneri, Alveolophragmium --------- 6, 

8, 9, 10, 15; pl. 2 

Labrospira -------------------- 15 

U.S. GOVERNMENT PRINTING OFFICE: 1973 0-.. 95-617 

PLATES 1-4 

Contact photographs of the plates in this report are available, at cost, from 

U.S. Geological Survey Library, Federal Center, Denver, Colorado 80225. 
PLATE 1 

FIGURE 1. N odellum membranaceum (Brady). 

X 115, sample P-19-61, USNM 175142. 

2. Rhizammina? sp. ( p. 12) 

X 68, sample P-12-61, USNM 175143. 

3. Marsipella cylindrica Brady (p. 12). 

X 70, sample P-13-61, USNM 175144. 

4. Bathysiphon discreta (Brady) (p. 12). 

X 73, sample P-19-61, USNM 175145. 

5. J aculella acuta Brady (p. 12). 

X 190, sample P-41-61, USNM 175146. 

6. Hyperammina friabilis Brady (p. 12). 

X 23, sample P-41-61, USNM 175147. 

7. Thurammina papillata Brady (p. 13). 

X 80, sample P-48-61, USNM 175148. 

8. Glomospira gordialis (Jones and Parker) (p. 13). 

a, Side view; b, end view; X 43, sample P-40-61, USNM 175149. 

9. Reophax dentalinaformis Brady (p. 13). 

X 55, sample P-56-61, USNM 175150. 

10. Reophax dijjlugiformis Brady (p. 13). 

X 436, sample P-41-61, USNM 175151. 

11. Reophax distans Brady (p. 13). 

X 62, sample P-33-61, USNM 175152. 

12. Reophax nodulosus Brady (p. 14). 

X 18, sample P-40-61, USNM 175153. 

13. Re,ophax s:corpiurus de Montfort (p. 14). 

X 37, sample P-41-61, USNM 175154. 

14. Adercotryma glomeratum (Brady) (p. 14). 

X 214, sample P-41-61, USNM 175155. 

15. Cyclammina trullissata (Brady) (p. 14). 

a, Side view; b. apertural view; X 73, sample P-40-61, USNM 175156. 

16. Alveolophragmium nitidum (Goes) (p. 15). 

a, Side view; b, apertural view; X 200, sample P-19-61, USNM 175157. 

17. Alveolophragmium cf. A. nitidum (Goes) (p. 15). 

a, Side view; b. ap·ertural vi·ew; X 185, sample P-41-61, USNM 175158. 

18. Cyclammina canc.ellata Brady (p. 14). 

X 19, sample P-40-61, USNM 175159. 

19. Alveolophragmium scitulum (Brady) (p. 15). 

a, Apertural view; b. side view; X 102, sample P-19-61, USNM 175160. 

20. Alveolophragmium subglobosum (G. 0. Sars) (p. 15). 

a, Side view; b, peripheral view; X 87, sample P-19-61, USNM 175161. 
GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 PLATE 1 

FORAMINIFERA 
FIGURE 1. 

2. 

3. 

4. 

5. 

6. 

7. 

8. 

9. 

10. 

11. 

12. 

13. 

14. 

15. 

PLATE 2 

Alveolophragmium weisneri (Parr) (p. 15). 

a, Side view; b, apertural view; X 155, sample P-19--61, USNM 175162. 

Alveolophragmium? sp. (p. 15). 

X 195, sample P-49-61, USNM 175163. 

Ammobaculites agglutinans (d'Orbigny) (p. 16). 

X 61, sample P-41-61, USNM 175164. 

Ammobaculites agglutinans filaformis Heron-Allen and Earland (smooth 

form) (p.l6). 

X 64 sample P-41-61, USNM 175165. 

Ammobaculites agglutinans filaformis Heron-Allen and Earland (rough 

form) (p. 16). 

X 106, sample P-49-61, USNM 175166. 

Ammomarginulina foliacea (Brady) (p. 16) 

X 137, sample P-38-61, USNM 175167. 

Spiroplectammina biformis (Parker and Jones) (p. 16). 

X 180, sample P-49-61, USNM 175168. 

Bigenerina minutissima Earland (p. 16). 

X 172, sample P-49-61, USNM 175169. 

Trochammina grisea Heron-Allen and Ear land (p. 17). 

a, Evolute side view; b, apertural view; c, involute side view; X 154, 

sample P-19-61, USNM 175170. 

Trochammina infiata ( Montagu) ( p. 17) . 

a, Evolute side view; b, involute side view; X 182, sample P-48-61, 

USNM 175171. 

Trochammina cf. T. malovensis Heron-Allen and Ear land (p. 17). 

a, Evolute side; b, involute side; X 252, sample P-41- 61, USNM 175172. 

Troc.hammina kellettae Thalmann (p. 17). 

a, Evolute side; b, involute side; X 240, sample P-41- 61, USNM 175173. 

Trochammina malovensis Heron-Allen and Earland (p. 17). 

a, Involute side; b, evolute side; X 320, sample P-12-61, USNM 175174. 

Trochammina nitida Brady (p. 17). 

a, Evolute side; b, involute side; X 220, sample P-40- 61, USNM 175175. 

Trochammina nana (Brady) (p. 17). 

a, Involute side; b, evolute side; X 215, sample P-49-61, USNM 175176. 
GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 PLATE 2 

FORAMINIFERA 
PLATE 3 

FIGURE 1. Trochammina globigeriniformis (Parker and Jones) (p. 17). 

a, Evolute side; b, involute (apertural) side; X 174, sample P- 41- 61, 

USNM 175177. 

2. Cystammina galeata (Brady) (p. 18). 

a, b, Side views; X 83, sample P-19-61, USNM 175178. 

3. Dorothia exilis Cushman (p. 18). 

X 190, sample P-49- 61, USNM 175179. 

4. Eggerella bradyi (Cushman) (p. 18). 

a, Apertural view; b, side view; X 138, sample P-19-61, USNM 175180. 

5. Eggerella scabra (Williamson) (p. 18) . 

a, Apertural view; b, side view; X 380, sample P-48-61, USNM 175181. 

6. Eggerella propinqua (Brady). 

a, Apertural view; b, side view; X 204, sample P-6-61, USNM 175182. 

7. Ophthalmidium pusillum ( Earland) ( p. 18) . 

X 113, sample P- 32-61, USNM 175183. 

8. Miliolinella subrotunda (Montagu) (p. 19). 

X 166, sample P-49-61, USNM 175184. 

9. Bulimina aculeata d'Orbigny (p. 19). 

X 56, sample P- 16-61, USNM 175185. 

10. Globobulimina cf. Bulimina auriculata Bailey (p. 20). 

X 47, sample P-16-61, USNM 175186. 

11. Uvigerina peregrina Cushman (p. 20). 

X 106, sample P-16-61, USNM 175187. 

12. Epistominella exigua (Brady) (p. 20) 

a, Evolute side; b, involute side; X 360, sample P-49- 61, USNM 175188. 

13. Epistominella umbonifera (Cushman) (p. 20) . 

a, Evolute side; b, apertural view; c, involute side; X 97, sample 

P-49-61, USNM 175189. 
GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 PLATE 3 

FORAMINIFERA 
FIGURE 1. 

2. 

3. 

4. 

5. 

6. 

7. 

8. 

9. 

10. 

11. 

12. 

13. 

PLATE 4 

Elphidiella groenlandica (Cushman) (p. 20). 

a, Apertural view; b, side view; X 79, sample P·-16-61, USNM 175190. 

Cibicides bradyi (Trauth) (p. 21) . 

a, Involute side; b, evolute side; X 227, sample P-19-61; USNM 175191. 

Cassidulina subglobosa Brady (p. 21). 

X 210, sample P-29-61, USNM 175192. 

Nonion labradoricum Dawson (p. 22) . 

a, Apertural view; b, side view; X 100, sample P-16-61, USNM 175193. 

Ehrenbergina hystrix Brady (p. 21). 

X 78, sample P-49- 61, USNM 175194. 

Involutina tenuis (Brady) (p. 22) . 

X 134, sample P-41- 61, USNM 175195. 

Gyroidina lamarckiana (d'Orbigny) (p. 22) 

a, Evolute side; b, peripheral (apertural) view; c, involute side; X 122, 

sample P-49-61, USNM 175196. 

Nonionella turgida (Williamson) (p. 22). 

a, Evolute side; b, involute side; X 190, sample P-16-61, USNM 175197. 

Pullenia subcarinata (d'Orbigny) (p. 22) 

a, Peripheral view; b, side view; X 142, sample P-12-61, USNM 175198. 

Anomalina globulosa Chapman and Parr (p. 22) 

a, Evolute side; b, peripheral view; c, involute side; X 109, sample 

P- 12-61, USNM 175199. 

Melonis pompilioides (Fichtel and Moll) (p. 23) . 

a, Side view; b, peripheral view; X 160, sample P-29-61, USNM 179200. 

Melonis affine (Reuss) (p. 23) . 

X 200, sample P-49-61, USNM 179201. 

Cibic.idoides cf. C. mundulus (Brady, Parker, and Jones) ( p. 23). 

a, Evolute side; b, involute side; X 280, sample P-49-61, USNM 179202. 
GEOLOGICAL SURVEY PROFESSIONAL PAPER 766 PLATE 4 

FORAMINIFERA