a 1t"-6-±~~~.~·i~fTransactions and Proceedingsof thePalaeontological Society of Japan
RPr In 12 ~1937(:l1!!.1t~~~ii!t{;~t 44 ~

No. 9

~ 529- 531 ~1}i:.!iiIj)[Reprinted from JOllr. Geol. Soc. Japan, Vol. 44. No. 529-531.J

P a laeonto logical Soci ety of J apan

::k

§

"* Transactions~

48.

CONTENTS

Tin g Ying' H. MA, On the Ordovician Climat e of the Nor t hern
Hemisp here deduced fro m the Growth R ate of Tabulate Cora ls .
(Published October 20) .. .. . .... .... ..... . ....... . .. .. ... .. 138*;j:f,UJlltlitll,,? JilG:&$ J: ~ fftit ~;f1..tc Q ~t** K:. ll' 11 Q ~ I!1iil*c "? ~~ C1i'M~)(10 f.l 20

49.

~

1k 145

Yanosuke OTUKA, Diodorct in J apan. (Published Octobel' 20) ··E1 ;lj.:jili77-' -\,;I/C:

50.

.. . . ................... . .. . .~~E1!!i~)"""( mi~)(10 Jl 20

B!!i~ ) .. · ...... · .. :;J(:!Jj( ~f*l

Z J!}J

153

Hisakatsu YABE and Toshio SUGIYA:I.oIA, Go tla ndian ClC!throdic- •tyon from 'l'yosen (Korea). (Pu1Jlished November 20) . . , . . . .
~\Il!!!1'jili

154

Gotlandian "? Clath1-ocl'ictyon !~1IXII't:' C1i'M~) (11 J'l 20. B!!i~) " """" " " """"" " """ " " ,, "!k ~jl ..If 3'{.,

51.

146

f~ III

Ilk. UII 157

Hisakatsu YARE and Kotora H ATAI, On the StratigraphicalSignificance of Pecten nag anu manus YOKOYAMA, and Its B earing on the J a panese Neogne. (Pu blished November 20) ... . ,.
Pecten naganumanU8

YOKOYAMA"?ll!HiLlmf* c .;J;I;."? 1t'l{[[ Gi'M~) (11 f.l

20 EI !!i~) . . .. . . . . . . . . ..... . . . . ... .. . .. . !k ';\11 ..If 3'i.,

52.

158

~Il

01'1: IJ' J1f.

169

Hisakatsu YABE an d Toshio SUGIYAMA, On a. Graphularia-Like
Fossil f rom the Pleistocene Tokyo Beds of Tokyo. (Published
December 20)· . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
JIOj(jili Graphulcwia (?) "? 1t 15I~Ji;.tIl't:' Gi'M~) ( 12 H 20 E1!!i~) .. . .

. . . . . . . . . . . . . . . . . . , ..... . .... . . . . .......• -!k 1l1\ :& }'i., ~ 11.1 ~ UII 173
53.

Kiyosi ASANO, Pleistocene F oraminifera from the Hiradoko
Shell Beds, Noto Peninsula, Japan. (Published December 20). .. ... ... ... . . . . . .. .. .. .. ... . . . .. . . .. .. .. ...... . . .. . . .. . . .

174

rrlf

181

4J Proceedings ... . . .... . ......

182

.~

(Transactions of the Palaeontological Society of J :lJI}all )4'8.

On the Ordovician Climate of the Northern
Hemisphere deduced from the Growth
Rate of Tabulate Corals')
By
Ting Ying H. MA(National Geological Survey of China. R ead June
19th ; r ecei ved J uly 18th , 1937)

The annual gr owth rate of Calapoeci as was measured fr om
th e figures given by several a uthorities in a previous work witht he view of find the Ordovician climatological conditions of t h eArctic r egions as well as several E uropean provinces.2 ) I n thepr esent article, emphasis is laid on th e development of seasona lchange and a nn ual leng th in growth of a num ber of tabulate
corals as a further detailed study 0 11 the cli mate of the northernh emisp h er e during the Ordovician period.

Measurements
1. Genus Calapoecia BILLI NGS, 1865
1. Calap oecia canadensis B U LINGS
1876 H oughton'ia hU1"omca (pa rs) ROHINGER: Fossil Corals, Geol. Sur\,. Mich., vol. 3,
pt. 2, p. 18, ph 3, fi g. 3.
1908 Calapoecia c l'ibl'~fol'mis CUMINGS : The Stratigraphy and P a leontology of th e
Or dovician Rocks of I ndi a na, 32nd Ann. Rep. D ep. Geol. Nat. R es. Indian a ,1907, p . 701, pI 1, fi gs. 3, 3 a, 3 Il, pI 5, fi s. 1, 2.
1928 Calapoecia lm 1"lJnensis TROEDSSON : Mid'd Te and Upper Ordo vician F aunas
1) P ublication perm it ted by t,h e permission of th e Director of the National
Geological' Survey of Chin a.
2) T. Y . I-I. MA: On the Gr owth R a te of CaZapoecia canadensis BILLINGS
and t h e Climate of t ile Arcti c R egions Du ring the O rdovi ci ~ n P eri od, B ull. Geol.
Soc. China, vol. X VII, No. 2, 1937.
-( 138 ) -

932

Ting Ying H. MA .

of Northern Greenl and, Med. om Greenland, Bd. 72, pt. 2, p. 124, pi. 28,
figs. 7- 9. pl. 33, figs. 2a- b, pl. 114, fi g. 3.
1928 Calapoec'ia borealis (pars) TROEDSSON : Ibid., p. 125, p I. 34, figs . 2, 3, pi. 36,
figs . Ill-c.
1936 Calopoecia canadens'is Cox: ReVis ion of th e Genus Ca Zapoecia BrLLINGS, Nat.
Mus. Canada, Bull. N o. 80, Geo l. Ser. No. 53, p. 7, pl. 1, figs. 1, 3, 5, pI. 2,
figs. 1, 2, 5-9 .
'.

L ocality

FigureAnnual L ength

33

2b

36

Ib

8.00mm.
No seasonalchangeDitto.

Author

Plate

Cape Calhoun, N. Gree nland THOEDSSON
D itto.

THOEDSSON

Ditto.

Cox

2

l a

Richm ond, Indiana

CUMlKGS13c

Ditto.

'Warren county, Ohio

Cox

2

7

Ditto.

Cape Smy Lh, Lake Huron

Cox

2

9a

Di tto.

3

3

11.00

2

8

4.80

Drummond I sland, Michigan ROMINGEH
Akpatok I sland, Canada

2.

Cox

,

.

C'alapoecia canadensis val' . anticostiensis (BILLINGS)

1861 . SY1'ingophyllum ol'ganum ROEMEH: Di e Fossile F a una del' Silurisch en DiluvialGeschiebe von Sadewitz bei Oels in Nieder-Schlesien, p. 20, pl. 4, figi'. 2a, 2b,
1928 SY?'ingoph yllum ol'ganum THOEDSSON : Loc. cit., pp. 121, 122. figs. 3-8.
1928 Calap'oecia bO?'ealis (pars) THOEDSSON : L oc. cit., p. 125, pI. 35, fi gs. 1 a- b, pI. 37.
figs. la-b, 2a- b, pl. 38, .fi gs. la-d.
1928 Calapoecia' (!1'cticct TROEDSSON : Loc. cit., p. ]27, pl. 39, fi gs. l a-b, pI. 40,
figs . 1 a-b.
1936 Calapoecia canctd~'nsis val'. cmt'icostiensis Cox : L oc. cit., p. 12, pI. 1, fig. 6,
pI. 3, fi gs. 1 a-c, 3, 5-7.
1936 Calapoec·i a canadensis val'. cmticostiensis forma (£j'ctica Cox: Loc. cit. , p. 16,
pl. 4, figs. 1 a-b, 2 a - b, 3.
1936 Sm'cimtla organum Cox: Loc. cit., pI. 4, fi gs. 4-7.
Author

Plate

FigureA nnu a l L ength

Cape Calhoun, N. Greenland TROEDSSON

35

Ib

13.00mm.

Ditto.

TROEDSSON

37

Ib

11.00

Ditto.

THOEDSSON

38

1a

]0.00

Ditto.
Cape Hilgard, Ellesmere
L andNorman Lackyer I sland,
Ellesmer e Land
Ditto.

TROEDSSON

39

Ib

12.00

Cox

4

1

8.00

Cox

3

5a

9.00 (?)

Cox

3

5c

7.50

. Akpatok I sland, Canada

Cox

3

7

7.10

-

(139 ) - -Loca lity9::!3On t h e Ordovician Cli ma: e of th e Northern H e mis phere
Anticosti I sla n d, Can ada

. Cox

3

6

7.00·mm.

High !-Ia ume, E ngla n d

Cox

4

7

5.75

Oscarsk a l, H er o, Nor way

Cox

4

6

5.30

Oslo, Norway

Cox

4

8

5.31

Ditto,T ROEDSSON

Ya m ingbo, Got la ndCox

G otla nd

T HOEDSSON

Oels, Germ an y

R OEMER

4
4

7

3.10

4b

3.54

4

3.50

2b

2.70

II. G e n u s CO ltLm na1'ia GOLDF USS, 1826.
3. Colunma1'ia alveolata GOLD FUSS
1876 Columnm'ia .alveolata R OMINGEH : L oc. cit., p. 90, p!. 34, fi gs, 1, 2, 4.
19.08 Columnm'i a alveolata CUMING ,' : L oc. cit ., p . 703, pI, 1, fi gs. 4, 4 a.
Fig ureAn nua l ,L ength34

220.00mm

1

4

20.00

L ocalit y

AU'l'HOR

P lateE scan aba R iver, Michigan

R OMINGER

Osgnod, Indi a n a

CUMINGS

4.

COlnm1W?'ia al veolata val' . inte1'venta · FO E R STE

1914 Column a?'ia alveolata val'. i nterven ta F OERSTE : The Rogers Ga p Fauna of
Cen t r a l K entu ~ky, J OUl'!1. Cincinnat i Soc. Nat. !-list. , yo!. 21, _No. 4, p .. ~ 22,
pI. 4, fi gs. 1 a- j.
L oca li ty
B rannon n ear L ex ington ,K en tu cky
Ditto.
Di tto.

5.
1925

A ut h or

Plat eFigureAnnual L eng th

FOERSTE

4

Ic

7.50 mm.

F OERSTE

4

Ih

9.00

F OERs'l'

4

1j

5.00

Colum nm'ia alveolata v al'. 1ninima E QE R ST E

Columna;'ia al;eolata "; 1' . minima !-IUME-': The P alaeozojC;' Ou t lier" of I_ake
Tim iskam ing, Onta ri o an d Que bec, Geo1. Sm'v. Can ada , Mem . 145, p . 60, pI. 5,
figs. 2a. 2b.
L oca li ty

Lake T im isk a min g, Onta rio

Aut hor!-Imm

P la t e

F igureAnnu a l L e ng th

52a

I 3.00 mm.

6.: ' Columnm'ia halysitoides T RO EDSSON
1928 Columnaria lt alys-itoicie.• TROIm ssoN : L oc, cit., p . 113, p I. 28, figs: 1- 5b.;"-(140 ) -'934

T ing Ying H . MA

Ant.horP lateFigureAnnua l Lengt.h

Cape Calhoun, N ..Greenland TROEDSSON

28

5b13.00 ruru.

Locality

7. COlt6?nna?'ia pCwvitt6ba TROEDSSON
1928 C{olwnnaria pal'Vituba TROEDSSON:

Loc. 5 it., p. 114, pI. 28, fig. 6, pI 29, fig. 4.

Locality

AuthorP lateFigu reAnnual Len gth

Gonoceras Bay, N . Greenland

TROEDS'lON

28

6

No seasonal('bange. .

8.

III. Genus H eliolites DANA, 1846
Heliolites int?'icatus val'. lamellosa LINDSTROM.1,899 H eliolite.s intricatu~ val;. lamellosa KIAER: Die Korallenfauna del' Etage 5<J.es norw egischen Silursystems, Palaeontogr., Bd. 46, p. 42. pI. 7, figs. 3-5.
AuthorLocality

KIAER

Asker Norway

9.

Plate

FigureAnnual Length

743.00mm.

H eliolites pa?'vistell(6 ROEMER

1399 H eliolites pa?'v'istella KrAER:

Loc. cit., p. 39. pI. 7, figs. 6-8.

AuthorLocality
0 stre SvartO, Ringerike,
NorwayE stland

KUER
KrAER

Plate

FigureAnn ual Length781.20 mm.

7

7

1.70

IV. Genus P.,.oheliolites KIAER, 1899
10.

P?'oheliolites dt6bit6S (SCHMIDT)

1861 H el10Utes dubia Roemel':
Locality
Oels, Germany

Loc. cit ., p. 26, pI 4, figs. 511,. 5 b.
Author

ROEilIER

Plate

FigureAnnual L ength

45a2.25 mm.

V . Genus P?'opo?'a MILNE-EDWARDS and HAIME, 1849
11. P?'op0?'a conferta MILNE-EDWARDS and HElME
1899 Propora COl'!~"rt a LINDSTHOM: R~lllarks on the Heliolitidae, p. 93, pI 8,
figs. 32-39, ' pI. 9, figs. 1-23, 31, 32, 35.
1899 . PlaEmopora c.on!el·ta KruR,: Loc. cit., p. 27, pI. 4, figs. 3, 4.
-(]AI ) -On the Ordovicia n Climate of the Northern Hemisphe re

Lo cality

93,5Aut·bor

Plate

FigureAnnual Lengtb

Borkbolm in Estland

LINDSTROM

834

4.00mm.

Ditto.

LINDSTROM

9

2

4.00

Ringerike, Norway

KIAER

4

4

3.00

Anticosti Island, Capada

LINDSTRO~[

9

12

4.25

12.
1861
1899

P'fOPO?'a t'ub~tlata (LONSDALE)

Propnm tubu7ata ROEMER: Loc. cit .• p. 22. pI. 4, fi gs. 3a, 3b.
Prop01'a tubulata LINDSTRO~[: Loc. cit., p. 89. pJ 8, fiigs . 18-21.
L ocality

Author

Plate

FigureAnnual L ength

Oels, Germany

ROEMER

4

3a2.25mm.

Borkbolm in Estland

L INDS'rR O~[

8

19

2.75

13.
1899

P?'opo?'a bacillife?'a LINDS'I.' ROM

Propo?"a ba cillifem LINDSTROM:

Loc. cit., p. 97, pI. 10, figs. 8-21.

Auth or

Locality

I PlateFigureAnnual Length

Borkholm in Estland

LlNDs'rRO~[

10J85.00mm.

Ostbjorka in Dalecarlia

LINDSTROM

10

9

4.50

14. P?'op01"a cfr. go ldf~/'ssi BILLINGS
J9R2

Propo?"a dr. goldfUgsi KUER: The Coral Fauna of tbe Kalstac1 Limestone
in Medalen, The I-Iovin Gr oup in the Trondheim Area, Vid.-Akad. Sh.1.
M.-N. Kl. 1932, No.4. p . 109, pI. 14, figs. J-3.
AutborLocality
Kalstad, Medalen, Trondbeim

Nicholsonia megastoma KIAER:
L oca lity

Soida, Estland

FigureAnnual L ength1435.50mm.

KIAER

15.
1899

Plate

P?'Op0?'a Sp.
Loc. cit., p . 3:7, pI. 6, figs. 8, 9, pI. 7, figs . 1,2.

Autbol'
KIAER

Plate

FigureAnnual L ength722.00mm.

VI.

Genus Nyc top o?'a NICHOLSON, 1879

16.

Nyctopom (?) pa?'votabulata KIAER

1932 Nyctopom (?) panotabuZata K UER:-

L oc. cit., p. 106, pI. 13, figs. 1-4.

(142) -

Ting Ying H. IliA

936
.

-'

--- - .

-

Locality

Aut,hor

Bakkenknau sen, Meda len,Tron tl h eim

VII.

KIAER

-.
Plate

Fig ureAnnua l L en g th

132

5.00=.

Genus Plasmop o?'a MILNE-EDWARDS a nd H Au m, 1849

17. . Pla[;mopo?'a larnbi SCHUCHER'.r
Plasmopo1'a lambii H mm: L oc. cit. , p. 18, pI. 5, figs. 1 a, 1 b.
1928 P lasmop o1'a lamb·i T ROEDSSON: Loc. cit. , p . 118, pl. 31, fi g. 3 a, p I. 33, fi gs.
l a , lb.
1925

Localit y

AuthorPla t eFig ure'Ailllua l Le ngtli

Ca p e Calhoun, N . G r eenl and T ROEDSSON

31

1b10.00 mm.

Ditto.

32

2

8 00

5

1a

9.00

TROlmssoN

L ak e Ti miska min g , Ontario H mm

VIII. ' Genus P lasrnopo?'ella KIAER, 1899
18.
1899
1936

Plasmopo?'ella convexotabttlata K IA.ER

Plasrnop o1'clla convexotabulata K IllE R: L oc. cit., p. 35, pI. 5, figs. 9-11.
Elasrnoporell{t conve:w ta.bulata Cox: L oc. cit., pI. 3, fi gs. 4 a , 4 b.
Loca lit y

AuthorPl ateFig lll'e

An nu al L e ngth

Ringerik e, Norwa y

KIAER

5

10

Ditto.

K I AEl~fi

11

L onger t h an
5.0Q mm .
2.70

Oslo, Norway

Cox

3

4b

6.62

.. 19.
1899

Plasmopo?'ella convexotabv lata var . i'esiwlosa" KIAER

P lctSmOpol'ella conve:rotabulata val'. vesiculosa K IAER:
figs. 1-2.
A ut,h ol'

L ocality
Ringerike, Norway

KI AER

20.
1912

-

L oc. cit., p . 36, pI. 6,

Plate

FigureAnnua l L en g th

61

2.70 mm .

Plasmopo?'ella Sp.

Piasmop o1'ella sp. R EED : Ordovi cia n a nd Silur ia n Foss ils from t h e Cen t ral
Himalayas, Pal. Indica, ser . 15, v ol. 7, N o.2, p. 160, pI. 3, figs. 1. 1 a .
L oca lit yPetha th ali Nulla h , Centra l
Hi ma layaAu th o l'
R EED
-

Plate

Fig ureAnnual L e ngth31aSomewhat l ess
than 5 m ID .

(143 ) -'On the Ordovician Climate of the Northern Hemisphere

937

From th e obtained values of the gr owth length and degreeof development of the seasOllal change .in the interior structure
tabulated above, it may be r::aid that temperatural diffor entiation
existed already in the Ordovician coralli ne r eef-seas. The annual
length as measured above, is longer in all of t he for m s from t he
Arctic regions than in those from. Northern Europe, and t h e development of seasonal change of growth is r emarkable in the corals
from the latter r egion and hardly observable or lacking in thosefrom the former. This striking contrast between th e Arctic andNorthern Europe r eef corals may cer tain ly indicate the existenceof differ ent climatic environments during the Ordovician in thehigh latitudes of the north ern hemispher e. From the m easurements of the species in Co l'LLmna?'ia and Calapo ecia together with
Plasmopom lambi SCHUCllER'!', it is assllmed that t h e water temperature of the Ordovician coralline seas in Timiskam.ing of Ontario, , Varren of Ohio, Cape Smyth of L ake Huron, Drummond
I sland and E scanaba of Michigan and Osgood of Indiana may
have been warmer thfLu that of Lexington of Central K entucky
and may have been similfLr closely to that of the Ar ctic r egions.
The growth rate in the same species in Calap oecia and P?'opo?'a
indicate that the temperatu r e of the Ordovician water s in Anticosti I sland of Canada may have neither much warmer nor cooler
than that of the British Islands and Norway, and th e water for
Gotland may have been slightly warmer tha n in Oels of Germany
and more or less cooler than in Norway a ud British I slands. Fromthe measurements of the forms in Plasmopo?'ella it is assumed that
the Ordovician water temper ature of Central Himalaya may havebeen sirnilar to that of Norway. From th e data now at h and, it
is concluded t hat the sea area of Northern Europe and Central
Himalaya togeth er with Anticosti I sland of Canada were probably
a portion of the marginal belt of the Oraovician corallin e soas,
and the zone combining the Arctic r egions, Timi skaming of Ontario, ·War ren of Ohio, Cape Smyth of L ake Huron, and Osgoodof I ndiana as well as Drummond I sland and E scanaba of Michigan
belong to the inner or central zone of the coralline r eef seas.

- ( 144) -'938

Ting Ying H , MA

pj~11Z11IUfNJO) ~·ffiJ¥i J: D:ttt5E ~ fLft.:o ~l t"'I::J;1CK;JR- \1 .:0 ~1~i[Jn~ 0)3f-\:1~

Cfiii~)'!;JUI':1klf1t;o~mr\!JlItli\ll!lii'i CD '~J' mi- K2}"~~JAf 1iX*1i'lfi:ili ~' oV ~ 1l.)J..J- tJ: ; -}"' ~f;."J~1iX*~'j(!t*i,\l\.at CD{.'~1!I:.': -1fCDfblH~ :r1~'Y ~ L. 2: V;t BK ~n:~K J: '::rCMi !ifJ ~ ;tt. tc .': L. -b '"(' oV ~ 0
7j;:r.m:X:iJj~CDli1Hru J: ~ :lt tl~r-lt~:l!l!jili; W i\J%=-I-f:ill CD ~~iI<lif:cf;f~;{tZl")Ulli\ll CD 1iX*~~1klf$~1iX-fff:;f{~:ili,!£;~t.1at:r J:~i\ocliffyt l .!!J. -C~'::; il.i( II.1H\;K jiNt ~ ~ttl~:eR~J!l! CD W. f~jJ}~W.:r ffli:tP. L""\'" ') .':'\!!.~'o :;!!J: ~ 1-!'}t:::f.#f.lftr.': l-c V;t ~t~J!l!7J1klf ~t7l',1l)

Huron !,\JJ, Ohio, Michigan, Indiana-1IIl'CDjili;J!l! CD n!t7MlM.atf:Ua: <b il,~, <, :!il: ~Iil¥.'ffiXp,Mc!1I~1klf ~!l\liif!, ~'f, CD ~1:~::i:lltf!(!ll")Ulli\ll1t;ojili;J!l!V;tJ:.
1l(l (;»rrl)-J!l!7J J: ~ *It', 1JII1;tj.;;: CD Anticosti Island V;t:!i'!:~.': jU!k. ~, tJ: It', ii-iiffiX1kv::!J'!:M<IV;t~!l\lilfl. J: ~ i.IM. < <1':9<: I:: "*(1)'7 -v ±!l!7n;Uj'IklriiffiX ~;: ill:It 'o J:.ll(l CD ;tJJ.Jt J: ~ ~, .... ~'q;f ~t;fl>J~:l!l!1J1klf~t

Huron I~j, Ohio, Michigan, Indiana ifr.-jili; j!l! Q) -111~ V;t'i::; II'!j'~f!Ul!Jlltli)lJ (;» rJq'mIJ J1X: ¥;t P<J11t'l'

Icll/il Y-":: < :lt ~:IlJ:!i'!:~r.ii~J:Mc!1I~~!l\liif!,1kV: :mHlU.!lli Q) '1':9<: I:: "7:;; -v:l1!!7J V;t~JI)li\Il7f!t (7) &1-flm 30 H"1~!'C ;tll 1::;-r ~ t CD .': ,\!!. V;t;tt. ~ 0- ( 145) ---49.

Diodora in Japan
By

Yanosuke OTUKA(Earthquake Resear ch Jnstitute, Tokyo I mperi al University
Receiveli Sept. lOth; read Sept. 25th, 1937) .

Eight species of th e genus Diodom GRAY 1821 wer e reported
from th e J a panese I slands :-D. j1.miwlata (REEVE) D . sieboldii(REEV E), D . ticaonica (REEVE), D. mus (REEVE), D . tanne1'i (VERRILL), D. cn6cijem (PILSBRY), D. elabomta (SOWERBY), D . humilis(YOKOYAMA). Beside the a bove written , two new forms a r e foundfrom J apan, The purpose of th is paper is to r eview these species
hitherto described and undescribed, and to show their geologic
range.
The genus Diodom was established by GRA. yl ) based on Patella
ape1'tum MONTAGU in 1821. Accordin g to J. THIELE~) , th e genus
is described as follow:" Schale kegelformig, lII linduu g eiformi g, Loch k lein odeI' massig
gross, etwas VOl' del' Mitte gelegeu, A pex del' envach sen en Schal e Tuckgebi1ldet, ObedHi.cbe mit feinere ll odeI' grobel'eu R adiahippen und meistens
m i.t kon zentrischeu F alten; an del' Innenseite ist das Loch von einer
hinteu abges tut zt en Schwiele umgeben j R and an den R i ppenenden gefaltet,
III einer Ebene odeI' seit lich erbobeh."

Followings ~re the description and diagnosi::; of Diodonml,
species found in J apan ,Descripti<m of species
Diodom fu niwlata (REKVE)
M. YOKOYAMA r eported thi s species from E himc prefecture,southwest Sikoku. But Diodom funic7.6lata (REEVE) is a species
found in Arabian sea n ear Kara.chi, which is differ ent fr om J apan ese species i n i,t s sculpture. and colouration. The prese nt writer
will propose a n ew name for th e J a panese 'S pecies in following
lines. (See Dioclom S7.6p1'apunicea OTUKA.)
1~ GRAY, London Med. Repos., Monthly J ourn. and Review, 15, p. 233,1821.
2) J . THIELE, Handbuch del' Systematischen W eicbtierkunde, 1, p. 3.5, 1929.

-(146)-

Y.OTUKA

940
Diodo'rc~

siebolclii (REEVE)
Fig. l a, b.

1850 F-issw'ella siebolcl'ii REEVE, Concb . I con ., 6, pl. 4, sp. 102.
1928 F-isS1l1·iclea . siebolclii, YOKOYAMA, Imp. Geol. Surv. J apan, R ep. 101, p. 124,
pI. 19, fig. 4.
1934 Dioclom siebolclii, HlRASE, ColI. Japanese Shells, pl. 62, fig. 5.
1934 Dioclom siebolcl'ii, NOMURA et ZINBO, Sci. Rep. Tobokn Imp. Dniv. (Geology),
16, 2, p. 149.

Shell stout, coni cal, sculptured with about eleven almost straightprominent radial ribs; three posterior of which most prominent, definedposterior surf ace into two p arts; beb\'een these radial ribs some l ess
prominent intermediate ribs prese nt; prominent ribs purple in colour;
concentric sculpture fine,' imbricated, almost straight bet ween promiuent
l'adial ribs; basal shell margin angulate in plan; ap ical bole small, white.
Dimension of tbe species from cenh'al J apan:
Specimen from Tomiurfl, Tiba pref. No, 1. : 20 .0 mm long ; 14.3 mm
wide; 9.4 mm high.
Specimen fl'om Tomiura, Tiba pref. N o.2.: 26.3 mm long; 16.3 mm
wide; 9.7 mm high.
Specimen from Ooiso, Kanagawa pref.
27.0 mm long; 17.3 mm
wide; 10.6 mm high.

This is a most common Diodo?'t67n sp ecies found near the
shore-line of central and western J apan.
Pleistocene : Tumuki and Hiradoko bed in Noto penin. (YOKOYAMA 1 ); OTUKAr); Ryukyu limestone of I s. Kikai (-zima), Ryukyu(N OMURA et ZINBO.)
R ecent: Sagami bay (O'l'UKA/>, South coast of ,Vakayama
pref. (KUZEY), East coast of Miyasaki pref. (KURODA)·ll, AmamiOosima (KURODAt).

D 'ioclo'l"a t icaonica, (REEVE)
1850

Fi.lStl1'ella ticcwnica REEVE, Concb . Icon., pI. 14, fig. 107.

"Shell ovate, gibbously elevated, anteriorly much inclined, slightly
hooked; thickly latticed t hroughout with strong n a lTOW radiating ridges
a,nd raised concentric striae; orifice elongately oblong, sides excavated III
1) M. YOKOYAMA, Imp. Geol. Surv . J ap., Rep. 101, p. 124 (1928).
2) Y. OTUKA, Bull. Earthq, Res. Inst. 13, 4 (1935).
3) Y. KuzE, Catalogue of Sbells of Tatugabama, vVakayama pref. (1930).
4) T. K URODA, Catalogue of Sbells of Miyasaki pref. (1935).

5) T . KURODA, Catalogue of the shell bearing mollusca of Amami·6shima.
(1928).

DioclOrfL in Japan941

the middle; greenish white sprinkled with dots a nd blotches of ol ive-green,
bluish around the orifice. An extremely chamtteristic species, much elevated and curved anteriorly, with the same na1'l'OW oblong fissure mostly
seen in the flat specieS." (RFEVE) .

. Type loc.: Talmo (=Ticao).
R ecent: T aiwan (=FormoEa) (REEVE).
According to SOWERBy 1) , this species is easily distinguishable
from the other species by its tripartite apical hole, the fine andrather sh arp cancellation, and the nearness of the apex to theventral margin. Diodo?'a elabomia Sowm=tBy2) is closely allied tothis Fpecies.
Although IWAK AWA") roported thi s species from Awadi. But
the writer could not find any D. ticuonica from I s. Aawdi except
D. sieboldii and D. elab omia (SOWEUBY).
DioclO1" (~ n1,US(REEVE)

Jilissl/1'ella mus, REEVE, Conch. I con., pL 16, fig. 120.

1850

" Shell ovate, somewhat attenuated anteriorly, rather compressed a t
the sides, much inclin ed anteriorly, radiately very closely finely ridged,
thickly decuss ated with concentric striae, orifice oblong, sides inegularly
rayed with ashblack" (R8EVE).

T , KURODA") r eported this species from the east coafit of Miyasaki prefecture with an interrogation ,Diodom ianne?,i (VERRILL)5)
M. YOKOYAMA referred a species from the Pliocene of Kosiba
to this species, but his species is distinguished from VERRILL'S
species in its sculptures. Tho present writer will propose a nowname for YOKOYAMA'S species in following lines. (See Diodom
yolcoyc~mai lcosibensi.s OTUK A,)
Dioclm'Ct m" 'uclj'C'J"(~ (PILSBRY)
Gli/Ph-is crucifej'ct PILSBRY in 'rRYOX, Man. Conch., 1 seL, 12, p. 225, pI. 32,
figs. 27-30.
1935 Jili" sw'iclea crucifej'a, NOMURA, Sci. Rep. 'rohoku Imp. Univ. (Geology), 18, 2,
1890

1)

SOWEHBY, 'rhes. Conch, III, p. 197.

2) SOWEHBY, Ann. Mag.' Nat, Hist,., 8, 14, (1914), p. 37.
3 ) 'r. IWAKAwA, Cataloglle of moll usca founel in J apan, 1919.
4) 'r. KUHODA, op. cit. (1935).
5) VERRILL, Proc, U. S. Nat. Mus., 5, p, 333, (1882).
-(148) -

Y. OTUKA

942

p. 220, pI. 10, fig. 50 a, b.

S. NOMURA reported this species from the Pliocene of Byoritz
bed in Taiwan (Formoea) . The specimen from Byoritz bed is ashell ,·v ith about 71 radialribf:', the h eight of which sh ell is about
6.6 mm. Apical hole situated at anterior one third of the shelllength.
Dimension of specimen from Byoritz 'b ed: 18.2 mm long;
5.6mm wide ; -6.6mm high, (All numerical values are referred tofig. 50 in NOMURA'S paper.)Type loc.: Natal, East Africa (Living).
Pliocene: Byoritz bed in Taiwan, (NOMURA).
Diodo'r~(,-"

elabor'atcT! (SOWiERBY)
Fig. 2a, b.

1914 1JIissw'ella elaborata SOWERBY, Ann. Mag. Nat . I-list., Ser. 8, 14, p. 37.
1924 1JIissuj'idea j'ueppellii, YOKOYAMA, Jour. 001 1. ·SCl. Tokyo Imp. Uni"., 45, 1.
p. 36, pl. 2, fig. 9 (fide. NOMURA) (not ·of SOWERBY 1834)1)
1932 Diaclora elabomta, NOMURA, Sci. Rep. Tohoku Imp. Univ. Geol. 15.2, p. 96.
1934 D'iodora elabomta, HIRASE, 0011. Japanese Shells, p. 33, pI. 62, fig . 4.

Shell anteriOl'ly concave, posteriorly convex, ornamented with radia land concentric ribs_
umber of radial ribs about 64 on shell margin,
which shell height a bout 9 mm; number of concentric ribs about 26;
apical hole situated at anteriol' one fourth or two seventh of shell length,
el ongate elliptical; inner margin crenate.
Dimension of this species from central Japan :Specimen from the sea-shore nr. Kosigoe : 18.6 mm long; 12.5 mm
wide; 9 mm high; no of radial ribs 64.
Specimen from the Upper Pliocene of Katase: 6.1 mm long; 4.1 mm
wiae; 2.5 mm high; n0 of radia l r ibs 36.

This species is associated with an open coastal faunule, andranges from Upper Pliocene (or Lower P leistocene) to R ecent.
Upper P liocene (or Lowcr Pleistocene): Byobllgaura bed of
Katase (O'l'UKA)").
Lower HOlocene: Numa coral bed of Tateyama and Onziku
in Tiba pref. (YOKOYAMA; NOMURA).
R ecent : Toyama bay (KIKUCHi)"); Sagami bay (OTUKA); South
1) SOWERBY, Proc. Zool. Soc. London, p. 128; 'Phes. Conch., 3, p. 107, pI. 240.
figs. 107-108.
2) Y. OTUKA, Bnll. Eal't,hq . Res. Inst. 15 (1937), 4.
3) K. KIKUCHI, Catalogue of Marine Mollusca of Toyama Bay. -(1936).
-(149 ~-

D iodol'a in Japan943

coast of vVakayama pref. (KUZE)'\ - East coast of Miyasaki pref.
(KURODAr>; Amami-Oosima (KURODA),,).
The f3pecimen from Sagami bay in the writer's collection israyed with olive colour cords from apical hole.
M. YOKOYAMA cited the specimen from Num.a to Diodo1'a
1'e~Lppel'lii (SO'vVERBY)"), but the latter is a Red Sea species.
D 'iodO'J'Ct lnt1nilis (YOKOYAMA). Fig. 3a, b.

1925 FiI3suridea hurnilis YOKOYAMA, J our. ColI. Sci. Tokyo, 45.7., p. 15. pl. 3, fig. 7.

" Shell rather thin, oblong- in outline, low-conical ; the a.pex in frontof the middle; anterior slope almost strai ght, shorter tha n the slightly
arched posterior one which has a blunt edg-e in the middle ; the sculpture
consists of numerous, subequal, stra ight, radiating- riblets occasionallywith a fin.ei: interstitia l between; the intel'spaces are fine ly latticed by
growth lines."
Dimensi on of t ype specimen. 22 mm lon g , 13 mm wide, 5 lum high.

Type locality: Hiraiso (The lower Pliocene of Minato), Ibaraki
pref.
Api cal h ole is situated anterior one third of the sh ell length;
number of radial ribs is about 96 ili the type specimen.
Diodo'rCt yolwyam~ai OTUKA n. sp.
Fig. 4u. b.

Shell con ical, ornamented· with fine radial and concentric ribs; anterio r
surface concave, posterior slightly convex; apical hole situated aboutanterior one third of shell length; number of radial ribs about 138 onshell' margin of typ e specimen.
Monotype: . No. 3937 in Em·thq. Res. Inst . Tokyo Imp. Univ.
Dimension of type specimen: 21.0 mm long; 14.0 111m wide ; 6.8 mm
high .

Type locality: Sionomisaki, Wakayama pref ., about 200m
deep, livin g.
Dioclo1'a tanne1'i (VERRILL),,) is a rela ted species to this species but the former has a sh ell 'ivith narrower inter stices thanthe latter. According to VERRILL, the r adiating ribs of the former
1) Y. KuzE. o.p. cit.
2) T. KURODA, op. ·cit. (1935).
3) T. KURODA, op. ci1;. (1928).
4) SOWERBY. op. cit. (1834).
5) VERRIU•• op. cit.
- ( 150)-

Y.OT UKA

944

are equal to or broader than the i nterstices, but those of D,
yokoyamai are narrower than the interstices.
Diodo'I"c~ 1Jolwy(~1n(~ilwsibensis OTUKA n . subs]).

Fig' 5a, b.
1920

Fissuridect cf. tcmnel"i, YOKOYAMA, J our. Coll. Sci. Tokyo Imp. Univ., 36, 6,

pp. 96-7, fig. 18.

FissU1·idea tanne1·i of YOKOYAMA from the Pliocene of Kosiba,near YOKOYAMA may be a synonym of the preceding species. But
YOKOY AMA'S specimen is mor e concave at its anterior surface than
the type species. In the preceding species, the radial ribs ar e
alternate with large and small ones, but in YOKOYAMA'S species,
radiating ribs are almost equ al with one another. I n these distinction the writer di stinguishes the YOKOYAMA'S species from theliving ODe, and give a new sub. 'pecific Dame-kosibensis-to thefossil species.
Monotype : No. Kf 501 in Geol. I nst. Fac. Sci. Tokyo I mp. Univ.
Dimension of type specimen: 9.6 mm high.
Type locality: The Pliocene of Kosiba, Yokohama city.
D iodO'lY~ s'Up'Jy~p~w~icea

OT UKA n. sp.

Fig. 6a, b.
1931 Dioclo?"Ct funiculata, YOKOYAMA, Catalogue of Marine, F reshwater and Land
Shells of Japan, p. 18, no. 518 (not of REEVE 1850)
Shell con ical; apical hole situated two fifth of shell l ength, tinged
with purple in colour; surface vinaceous t aw ny in colour, almost straight,
sculptured with r a dial r ibs and concentric r ibs; r adia l r ibs about 96 in
number on shell margin of type speciemen, dotted with dark brown;
inner surface smooth white, h'anslucent; inner margin crenate.
lVIonotype: No. 681 in the Earthquake R eseal'ch Institute.
Dimen sion o;f type specimen: 20.6 mm lon g; 14 mm wide; 6.7 mm hig h.

Type locality: Onziku, southeast coast of Tiba prefecture.
Shor e sand.
Diodom yolcoyam.ai O'l'UKA is a closely r elated species tothis, but the former has finer sculpture than the latter. Diodom
elabomtcL (SOWERBy)l) is another allied species to .this new. species,
but the former has gibbous shell with coar ser scu lptur~ than thelatter.
1) SOWERBY, Ann. Mag. Nat. Rist., 14, p. 37, pl. 2, fig. 8.
-(151)-

Diagnosis of Diodontm species in Japan.
Profile of shell.

Apical hole.

Specific Nllme.

Radial rib.

siebold'i ipurple or white in colour.
straight, 11-12 prominentand Jess prominent between.

anterior and posteriorstraight.

white, situate anterior 1/3.

ticaonica

about DG in th e she1l2.1mm
long.

anterior concave posterior
convex gibbollS in form.

bluish, situate 1/4-2/7 tripartite.

mu.~about 80 in the shell 20.5mm
long.

anteriorly attenuated.

situate 1/3 of shell length,
oblong.

cmcijemabont 71 in th e shell 18.2 mm
long.

lower than elabo1·ata.

situate 1/3 of she ll lengt,h .

el (tbont! aabont 36 in the shell 6.1 mOllong.

anterior concave posteri or
convex gibbons in form.

white, sitnate 1/4-2/7 elongate elliptical.

humil'isabout D6 in the shel l 21.2mm
loug.

depressed conica l, anterior
concave, posterior slightly
convex.

situate 1/3 of she ll length .

yokoyamaivery fine, about 138 in theshell 21.2 mm long, alternatewith large and small.

anterior straight Or concave,posterior slightly convex.

situate anterior 2/5.

yok . kosibensis

very fine, abou t 134 in theshe ll 9 mm higll; equal.

anteriol' concave, p::> steriorslightly convex.

situate anterior 2/5.

SU1J1' apunicea

about D6 in the shell 21 mm
long,straight or slightly concav eor convex.

purple (or white), situate anterior 2/5, elliptical.

t;j,....,

"',
l'!)

-

-

o·

R.

c

;:i

s·
<-<

'"
I:l
'"

't:1

CD

~

946

Diodom f~mic~data (REEVEr) from K arachi, Mouth of theIndus is anoth er allied species, but the species is remarkable f or
the dark articulated ribs which radiate from the nearly roundapical hole. Radial ribs of 8~~p1'apunicw are finer than those off~miw la ta .

Purple colour on its apical part, elliptic apical hole, andfinely latticed sculptures distinguish this new species from theother.

Explanation. of Plate 30 (15)Diodom si eboldii (REEVE) 26.3 X 16.3 x 9.7 mll1. (Living, Tomim:a..)Dioclo r a elab orata (SOWERBY) 18.6 X 12.5 X 9.0 mll1. (Living, Kosigoe.)F i g. 3. D iodora h~'milis (YOKOYAMA) 22.0 X 13.0 X 5 .0 mll1. (Pliocene, H il'aiso.) R eproduction of YOKOYAlIU'S original fig ures.
Fig. 4. DiodO?'a y o /;;oya?nui 01'UKA n. sp . (Monotype) 21.0 X 14.0 X 6.8 mm.
(Living, Sionomisaki, 200 ll1 deep .)Fig. 5 . D iodo ra yokoyama·i kosibensis OTUKA n . subsp . (Hol otype), 9.6 mll1high, (Pliocen e, Kosiba.) Reproduction of YOKOYAMA'S original
figures.
Fig . 6. D iodo r a sup?'apunicea OTUKA n. sp . (Holotype) 20.6 X 14.0 X 6.7mlll.
(Living, Onziku .)Fig. 1.
Fig. 2.

B

*

gE

!7

A'

-t'

jj'

1::

Oim~)

* 5!lILz PJJ~

7.;<.'1':Jl ~ ~Pi?

Diodora ij)Km-t- ?,tillr.t{ft3I~~I ;;j;:)\ > ~ ~cD 8 *lll)\'$-t!r~.n- L J;;?' 0

D . junicu/ata (REEVE), D. sieboldi'i (REEVE), D. ticaonica (REEVE), D . ?nUS

(REEVE), D . tanner·i (VERRILL), D. cl'ucifera (PILSBRY), D . elabomta (SOWERBY), D
lmmilis (YOKOYAMA ).

Jl:t ~cD l,l)r~l ticaonica )\,i9{Ilt"C:-tfi~ ~.n-U;) c c. , E;;j;:cD juniculata

c. tanne?·i c.fi1).-t-?, t cD)\'lJicD t cD c.~?' C c. c. )\'ili-<L<V?,o f:1;;j;:cD juniculala Kr.t
supmpunicea, i"l t < tanneri t.:r.t yokoyamai JJ<.V: yokoyam'(Jfi kosibensis a:JifrKf,tl',g;1..- tc 0 *$:$3' Upper Pliocene W.'1!t K~t l! , Cl·tlC~rel·a, humilis, yokoyamai /.·osibb71sis cD
ij. :b~fWiffrl!!: K t & l! L J;; tc

01) REEVE, Conch. Icon., 1850, pI. 9, fi g. 65, (as FissuI·clla).
-( 153 ) -

Jour. GeoJ. Soc. Japan, Vol. XLIV, PI. 30 (is) (OTUKA) .

4IJ

5IJ

\

I

"': :·~~·'~'~~r>:~,· :f;'~.;~,~"",r'}':':'-~'" .:." o':~, "'.;' .,", .' ,~-:.',:. . ". )~. ~;·k~~~~:;· ~~.''~J.:II! '.~' '" :;.....

.,!'

.1

..

:

·it·' ": ...... ,

j~~~~
'F-"

,..

.,.:.....- ...

J.

,"

(,Jlransactions of the Palaeontological Society of' Japan)

50.

Gotlandian Clathrodictyon fromTyosen (Korea)
By

Hisakatsu YABE and Toshio SUGIYAMA(Read Sept 25Lb.; received Sept. 30th., 1937)

Throughout Jorth Chin a, Manchuria an d Tyosen (Korea),
Carbon iferous deposits r est directly on Ordovician limestone inparall~l unconformity, while ther e is discovered no Gotlaudianand Devonian strata over this extensive r egion. I t is so far truethat there prevailed a long time of subaerial denudation 01' terrestrial condition before the deposition of Carbonif erous sediments;
the evidence, however, is by no m eans conclusive for the vi ew
th at the r egion was n ever cover ed by sea··water during the Gotlandian and Devonian per iods. For several decades past, ourknowledge showed no progress on thir:; line ; h ence it was senmtional
when Mr. K. OZAKI of tho Shanghai Scionce I nstitute, r ep or ted
in 1932 his discovery of a limestone with limestone bouldor s bearing
Gotlandian fossils n ca r Kenniho, H Olan-nan -do, T yosen (Korea),
which h e and S. SHIMIZU later called the "Kenniho limestono
conglomerate')".
OZAKI and two otherr:;2) descri bed the fossi18 in the lim.estoneboulders of the conglomeratic limestone, and distingui sh ed 32
species in 18 gen era, mo;-;tly of corals; thou gh some of th em seemto need revision, yet the a,'soci ato occurrence of the corals sur ely
belon ging to t h e gonera Halysit es, P?'opom and H eliolites inmany limestone boulder s lea ves a lmost )]0 donb t about the Gotlandian age of the fauna and th e limestone boulders containing it.
Tho " K enniho limeston e conglomerate" is a true conglomerato1, 2) . S. SHI~nzu, K . OZAKI :llld T. OBATA: Gotlandian deposits of Nortbwc3t
Korea. Jour. Shan g ha i Sci. Inst., Sec. 2, Vol. 1 pp. 59- 85, 1934.
- - ( 154) -1010

I-l. YABE and T . SUG IYAMA

with limestone boulder s 'of various kinds, inCluding those apparen tly of simila r aspect with some Ordovician and Cambrian limestones well developed in the neighbourhood; on the other hand,
no Gotlandian fossils were found in its calcareolls cement in spiteof a careful search by one of u s (Y ABE) an d Mr. T . ORSE, a former
m ember of our Institute. I n addition, Mr. T . KOBAYASRI1l r eported
a find of a boulder of the Cambrian Redlichia sh ale with Redlichia
in it. The conglomerate should be of the Mesozoic date, if itr eally passes upwards and laterally without any interruption into
the clastic conglomerate at the base of the Lo,ver Jurassic (?) Tudogroup as pointed out by KOBAYASHI~ J .
The typical locali ty of the "Kenniho lim es tone conglomerate "is situated nea r a small village of Sinda, 3 km NE of K ellniho.
Y ABE and OHSE in their few hours visit to this locality in thespring of 1935, collected t here several fragments of corals. These,thin sliced and microscopically examined, vvere found to be Flalysites, Hel iolites, P1'0p01'a, Fa'vosites and some other corals, beside
two Stromatoporoids deEcribed below. A specimen of P1'opom isin excellent pr eservation; its transvorse section is photographed
a nd is sh own on the accompany ing plate (pI. 31 (16), fig . 5); it is,
we believe, specifically identical with P?'opom a.tfinis (BILLINGS)3l,
whic1J. is the well known Gotlandian ,'pecies, hitherto reported from
Canada, Europe, Siberia and China in Asia.
I , 2) T. KOBAYASHI: Is the Kenjiho Limeston e Conglomerate a Gotlandian
Deposit? J our. Geogr. vol. XLVII, no . 558, pp. 362-366.
3) Prop om dr. p,{Jinis (BILLINGS) :- Coralli tes 1.5 mm o r somewhat less inbreadth, margin crenulated due to the presence of 12 minute nodulous protrusions ;interspaces more or less narrower a nd minutely vesiculated. Eection stored in
the Institute of Geo logy and Palaeontology, Tohoku Imperial Un ive rsity. R eferen ces; L. M. L AMBE : A Revision of· the Genera and Species of Conadian Palaeozoic Cor als (as LyeZZia a.tlinis BILLINGS). Contr. Canad. Palaeon t ., vol. IV. pt. I.
p. 84, pI: V., figs. 1, l ao G LINDST ROM : Remarks on th e HeliolHbidae (as Prop01·o.
conferta M. EDWARDS et J. I-lAIME). Svenska Vet. Akad. Handl., vo l. XXXII, No.1,
p. 93, pl. IX., figs. 5, 6, 9-22. J . KI;(R: Revision der Mittelsilurisc ben HelioIitbiden und ne ue Beitriige zur Stammesgeschicht derselben . Videnskabs-Selskabats Skrifter. I. Math-nat. V , K lasse, 1903, No. 10, p. 52.
OZAKI desc ribed two for ms of Propom, P. efr. m.ctgnijica POCT A a nd P.
yabc·i OZAKI from the same locali ty. Tbe two agree "'ith ours in lacking true
septa, acul ae and dacilli and in having vesicul ar coenencbymal tissu e ; it is questi onable wbether the two forms of OZAKI are reall y distinct from P. affinis. OZAKI :Op. cit., pp 67-68, pI. X, figs. 9, ]0; pI. X I, figs. 1-3.
-(155)-

Gotlandian C~athl' ocl'ict yon fro m Tyosen (Korea)

1011

The boulders of the Gotlandian limestone must have their
origination somewher e in this neighbourhood, or at least not far
distant, since they are ~ften angular or snbangular and sometimes
attain mor e than 20 cm in diameter; whether th e erosion relics ofthe limestone do or do not still exist in situ may b e settled only
by a later, more detailed stratigraphical survey,
It is also worthy of special mention that Mr. Y O.\'UKI, ag raduate of our I nstitute discovered in 1936, richly fo ssiliferou s
Gotlandi an deposits in the Kitakami Mountainland, Japa n l ) ,Clathroclictyon 'vesiwlosU?n NICHOLSON and MURIE
Pi. 31 (16), Figs. 1, 2,
Clathl'odiclyon vesictdosmn NIC ITOLSON and lVIu RlE: N. A. N ICHOLSON, A Monograph of the british stroma10poroids . Pala eontograph. Soc. Monog. p. 147,
pI. 17, figs. 10-1 :3 ; pI. 18, fi g. 12 (\rith synonym.r).
1896 Clatit?-ocl'ictyon t:esicu losum NICHOLSON and MURlE: Canadian Stro matoporoids
wi th Reference to the Literatllre of each species described from Canada.
Canad,t Rec. Sci., vol. 7, p. ]34.
]908 Clath l'oclict!Jon vesiculosU1n NlCriOLSON and MURm: vv. A. PARKS, Niagara
tromatoporoids. Un:v. Toronto Stud. Geol. Sel'. no. 5, p. 14, pI. 7, figs. ], 6 ;pI. 8, figs. 2, 4, 5.
]9~9 Clath1'ocl'ictyon ' 1'esiculosm n NIC ITOLSON 'Ind MURlE: B. YAI'ORSKY, Silurian
stromatopo ·oids. p. 104, pI. 7, fig. 8; pl. 8, figs. 1-7.
]933 ? Clathl'oclictyon usiculoswn N ICIIOLSON and MURm: wr . A. PAUKS, New
Species of stromatoporoids, Spo nges, and Corals from the Silurian Strata
of Baie des Cbalenrs. Univ. Toronto Stll d. Geol. Ser. no. 33, p. 9, pI. 2,
fig. 2.
1892

A small piece of coral-st ock, of which 2 sections cou'd scarcel y beprepared.
Form a nd surface feature of coenosteum unknown. Skeleta l elements
slendcr, ave rage 0.1 mm in br eadtb. Horizontal element s subp m'a llel, 9-10
counted in 1 mm, much u nd ulated so as to be often h a rdly di stingu ishedfrom vertical elements where both are connected to form a n ea rly vesicular
structure . Ver tica l elements appeal' as minute clots in tang'en t ial section,
here and there un ited by h orizon't al elements to s ho rt verm icular strings.
Astrorhi zae and mamelolls not exhibited in sect; oll s. Traversed by numerous Caunop ora tub es, 0.3-0.5 mm b load.

Almost indistinguishable from the typical Clath?'oclictyon vesi 1) Y . ONUKI: On the P alaeozo ic Formation n ear Sakam otozawa, Kitakami
Mountainlnnd. J our. Geol. Soc. J apan, Vol. 44, No. 522, pp. 168- 186, 1937 (inJapanese).
--( ](j6) --H. YAR E AND T. SUG IYAMA

1012

c1doswn as figured r . A. NICHOLSON, in so far as can be judged
from the scanty material at hand.
Clath?·oclictyon SalCLi?,ic1Lm YA VORSKY
PI 31 (16), Figs. 3-4.
]929

Clath?'odictyon salai?'icwn YAVORSKY: Siluri an stromatoporoids. Bull. Com.
Geol. Leningmd, vol. 168, no. 1, p. 106, pI. IX, fig. 8; p. X , fig. 1.

A few fragmental specimens ; form and surface feature of coenosteum
unknown. Horizontal elements very p ersistent, slightly undulated, parallel,
up to 0.05 mm thick, 7-9 counted in 1 mm, Vertical elemen ts well developed at both ends by two successive horizo ntal elements and formin goblong compartments which are horizontally elongated. Vertical elements
0.075- 0.1 mm thick, a ppearin g as distinct and irregularly distributed minutedots in tangential section . Traces of astrol'hizae a nd mamelon visibl e in·section . Thin sections only.

A pparently indistinguishable from Clatlwoclictyon salai?'icumfrom the Gotlandian of Siberia, in so far as can be
judged from the sections at h and.

YAVORSKY

Explanation of Plate 31 (16)Clatlwoclictyon v esi c~tlos'tt m N IOHOLSO N a nd MURm

Fig . 1. . Vertical section, x lO
Fig. 2. Tan gential section . X IOClath?'o d-ictyon sala-i?'icum Y AVORSKY

Fig . 3.
Fig. 4.

Vertica.l section, x lO
'l.'angent ial section. X 10

Fig, 5.

Tan gential section .

P1'o p o1'a cfr. aDZnis (BILLINGS)

x6

f,~1.@!f\'tl.tj[fj,itliI.t 1+! 'IlI\'iiIt =ifIJ ;II:;JU'~ 3 km ,'yf[[j:<DT~1!t;:Oi9(!£f <D ;61J(;!g·((:Il ~ ' b Clatlt?-o ~l'ictyor.
~(2fillw.n, PropomiJ(

1 f;lFI!Jl¥~tI~ ~ {1. fii3 Ui£t...td( , Gotlandian <D Q:U:n.fiJll;:filft,t.~fRJ1c:

l:f.nl~<> 0- - (157) - -J our. G,·Ol. Soc . .Japan, Vo l. XLIV, PI. J L ( U;) (Y:\J3E :::t lld SUGIYA:lU)

1

;,

5
KD[t;RAphot.o.

51. On the Stratigrap hica l S ig nificance ofPecten naganumanus Yokoyama, and
Its Bearing on the Japanese Neogene
By
Hisakatsu YABE and Kotora HATAI(Contribution from 1he I ustitute of Geology and Palaeon tology, Toho];:u Imperia l Univers ity, Sendai, Japan.
Read Sept. 25th.; received Sept. 30th., 1937)

Since the well-known scallop, Pecten nCLgCLnU?nCLn'ns was described and figur ed by Dr . M. YOKOYAMA in 1920, it was f rom time
to time reported from many r egions by different author s. At thepresent time its known southernmost limit in di stribution is in
the Philippine I slands, whi le its northernmost one is in th e Sotana
seri es of Hokkaido, northern Japan. The interesting geographicaldistribution and recent gift of several specimens of Pecten nCLgc~­
m~?nc~m~8 from the P h ili ppine I slands by Mr. vVataru HASH~MOTO
to the senior author, has led the writers to thi s short note.

Pecten nCLgCLnumCLnus YOKOYAMA, 1920
Figs. 1, 2, 3.

1920 P ecten nagam i11wna YOKOYAMA, Jour. CoIl. Sci. Imp. Uu i\'. Tokyo, Vol. 39,
Art.. 6, p. 160, pI. 13, figs. 4-6.
1922 P ee/en naganurnana YOKOYAMA: D I CKERSO~ , Philippi ne Jo nI'. Sci ., Vol. 20,
No.2, pl. 12, fig. J.
1928 P ecten (V Olcb) sinensis SOWER BY : YOKOYA~ [ A, Rep. Imp. Geo1. Surv. J ap. ,No. 101, p . 97, pl. ]4, fig. 1 (YOKOYAMA'S spe(:ies).
1931 Ptcten (V ola ) naganumar, us YOKOYAMA: NOMURA and N UNO, Sci. Rep. Toholm IJllp. Un iv., 8el'. 2, Vol . 15, No.3, p . 179. (questionable)
1932 Pecten (lctqu eatus val'. ? ) nagctnwnanus YOKOYAMA : K URODA, The Venus,
Vo l. 3, No.3, appenclix p. 103, fig. 116.
]933 Pecten (V ola) naganurnam bs YOK OY,IMA: NOMURA, Sci. R ep. Tohok u Imp .
Univ., SeT. 2, Vol. 16, No.1 , p. 58.

Pecten·, nCLgCt?1!LPnCLnUs w~s first descr ibed by YOKOYAMA in 19~0,
upon well p reserved specimens derived fr om th e Naganuma zone
at Naganuma, Sagami province, Centr al J apan. T he or iginal descrip tion is as fo llows : -(158 ) -1014

H. YABE and K. I-JATAI

She1l medium-sized, not very thick but finn, roundish, bI'oader thanhigh, strongly inequival ve, nearl y equilateral, the lower marg in describing
a semicircle with the anterior and ' post erior corners obtusely angulate
an d the antero-dorsal and postero-dorsal margins sloping a nd somewhat
concave. Right valve convex and swollen, with broad and flatly ro unded,
subequ al, radiat ing r ibs separated by i ntervals of a less breadth; numberof ribs normally twelve, but sometiIl1es thirteen or el even with one tothree small subsidiary riblets at the anterior as well as at the posterior
ends. L eft valve quite flat, or even a l ittle concave, also orn a mented withfl atly rounded radiating ribs which, however, al'e much narrower than thoseof the right valve, so that the interspa ces 'become consequently wider than
the ribs ; theil' numbe r is normally eleven, but may lessen to ten or increase to twelve and may also b e a ccomp a nied by a few subsidiary ribletsat b oth ends of the valve . Fine dense concentl'ic elevated lin es cross theribs as well as the inter sp aces, mo st distinct on the fla t valve. even obsolete on the ribs of the convex valve, on which we often observe several
longitu dinal striae. Ears are nearly equal especially on the flat valve,the anterior ear of the right va~v e b eing marked by a sh allow byssal notch.
The largest specimen in our possession measures 82 millim. in height,
95 millim. in length and 25 millim. in depth.

The sp ecies alli ed to P. nagan'u?ncLmLs are, P. l a q~Geatus SowERBY, P. sinensis SOWERBY and the Australian P. bificl~GS MENKE(or P. .!umCGtus REEVE). All of these m entioned sp ecies are closely
r elated to P. nagcmtG?7Wl1/US, yet not one of thenl. can be said tobe specifically identical, and the diffe rences existin g between theabove m entioned ones is tak en to be of specific va lue by authors.
KURODA is inclined to r egard P. nCGgan~Gmanus as a possible variety of P. laq"Ueat~Gs SOWERBY, a recent and fossil species in Japan.
NOMURA and NIINO believe that P. nagcGnnman~G.~ is r elated to P.
laq~Geatus SOWERBY and P. .!~G?71CGt~GS REEVE, but the differ encesb etween those scallops is of specific value, thus mlrranting theirseparation and not combiuation. NOMURA states th at P. nCGgCGn~GmamGS is not a synonym of either P. sinensis or Pu varietal formof P. laqnecGtus, but is closely r elated to the Austra lian P. bificl~Gs.
Specific distinction among these mentioned forms lies in the num·bel' of normally developed ribs on both the right and left valves
and also in the degree of infiatness of the umbonal r egion of theright va lve.
From studies on the literature III concern and from the obsorvations on specimens, we also prefer to r egard P. nagan1Gman1GS- - (159 ) --On the Stratigraphica l Signific'lI1ce of Pecten naganwnamls

1015

as closely r elated to the mentioned forms, but at the same time,
recognize it as a valid species characteristic of the Japanese Upper
P liocene or L ower Pleistocene, acco rding to authors. ,TV 0 , however,are in the opinion that intermediate forms between P. nCLganwna?ws and t he above mentioned forms must be found in orderto make clear the true r elationship existing between the sp ecies
in question to those of close alliance.
Species r elated to P. nagamvrnanus ar e found in the T ertiary
deposits of wester n Nor th Ameri ca, and are given below briefly
in order to make clear their relation to the present one.
I n regar d to Pecten htL1nph?-eysi CONRAD , a Miocene sp('cies ofthe east er n coast Ter tiary of North America, GRANT and G ALE l ) ,state t hat:
The two weU-knwon forms, flurnp h?'e I s·i a nd laq tteat~ts, are so very
mu ch alike that t hey probably cann ot be distinguished and. are here t entat ively consi dered synon ymous in spite of their very distant occurrences.
The variety al etes expl ains a nd un it es these two 'w idel y separated occurrences, fOl' it is a fOl'm prob nbly not more than val'ietally d istinct, b eing
ap p a rently a local off-shoet that separated from t he main stock as it migrated from :Ma ry land to J apan . Wh ether the synon ymy as given ab ove be
accepted 01' not, the fa ct of primary import ance ca nnu t be do u bted that thisspecies or gro u p of forms m igrated, probably durin g the Miocene, bet"'een
Maryland and Japan through CaLfornia faunas is entirely mytholo gicaland to show that migration hns occurred between this r egion and other s,that some speci es must have come here from t.he othe r r egion s, a nd that
therefore the f aunas of the other regions mu st be taken accou nt of a ndsome of t he specific names ap pli ed to Ca lifo rni a f orms. Fm thel'JIlo re,this instance does not oc cur a lone but is accompanied by many others.
T he P ectens su pply the cases best known to the present 'wr iters, "'ho havestu died them more with th is idea in mind, but similar cases have been
noticed in other genera su ch as Corbulrl, Psephaea, N»cu la" Pita?' (A mi antis ), lYIact1'a, et c. Provinciali sm has deprived California pa l aeontologist sof ODe of the most helpful aids in making con'elati ons and has kept int he clark some of t he most intel'esting ch apters of this part of naturalh istol'Y·
GRANT and GALE con::;ider P. laq16eat1Ls to have migrated fromthe Atlantic side to the Pacifi c side of North America and to1) U. S, GRAN'r, VI anrl H, R. GALIl: Catalogue of tlw P li ocene and Pleistocene Mo'llusea of Californ ia. Mem. San. Diego Soc, Nat. I-jist., Vol. ], pp, 221222, 1931.
-( 160 ) -101(3

H. YABE and K. I-lNfAI

Japan under the name of P. humphreysi, to which it was lumped
into ; and that aletes serves in uniting and explaining the widely
separated occurr ences: However, in the explanation given by GRANT
and GALE, c~le t es apparently neither unites nor explains th e remoteoccurrences of P. h~6'mp7weysi . and P. laq'neatus, as nothing i::;stated in regard to the occurrences of intermediate forms between
those two species in the inter evening area on the one hand, andaletes does not seem to explain their remote occurrences as it
occurs only in L ower California, according to th ose authors.
More r ecently,H. 1. TUCKER'); gave the following statement :Compal'i sons of sp ecimeus of P. ,laqu.eatus SOWERBY f rom J apan wi th
the Maryla nd h~£mpl/.?' eys i leaves no doubt that they aI'e only genericallyr elated. There seem s little basis for placing SOIVERBY' S species in synonymy under hwnph?'ey s-i, as GRA.NT and GA.LE .

The view h eld by TOCKER in r egard to the r elation existing
between 7m mph?'e ysi and laq~~eat~tS, is followed by llf'. T he maindifferen ces noted by u s, as ide from the remote occurrence's ar ebriefly g iven in the following lines.
The ribs 0]) the left valve of l a q~~ec~t16s number 8-9, and are
more closely spaced, as well as mor e roundly higher than i nh~~mp7L?'eysi, which h as 7-8 ribs. The ribs on th e rig ht valve seemto be more pronounced, with less .. ignificant subsidiary ones at thesides and generally number 8, but range within 8-9, instead of only
7-8 as compared with h~~mphTeysi, ' Also the beak of the rightvalve as well as the umbonal region of laq~~eat'l.~s seems to' be moreswollen than in 71'1.vmph?·eysi.
Pecten nagan'l.vnwm~s is also closely similar to P. bell~(,s CO·
NARAD 2 ) , an extinct species occuITing in the Middle and Upper
P liocene deposits of the west coast T ertiary of North America.
Its de::;criptioll as given by GRAN'!' and GALE is as follows:
Ri g ht (lower) valve only moderately convex, th e point of greates t
convexity bei ng about one-third of th e distance from the hill ge- to thepostel'i or margin of the disk., the umbo curving sh arply in some specimens
1 ) H. I. T UC KER: Th e Atla ntic a nd Gulf Coast Tel't ial'y Pectin idae of the
Urn.ted States. Amer. MidI. Nat., Vol. 17, No.2, p. 479, 1936.
2) G. I-I. ELDRIDG], aud R. ARNOLD: Bu ll. 309, U. S. Geo l. SUl' v., p. 24, pJ, 35,
fi g. 3, 1907 ; VVA'rERFALI, : Univ. Calif. Publ. Geo!., Vol. 18, No.3, pp. 78, 81. 82,
1929; GRAN'!' and GALE : Op. Cit., p . 225, 1931.
- ( 16 1 ) -On th e Stratig raphi cal Significan ce of Pecten naqanllmanll.s

1017

and m ee tin g the p lan e of the ear s perp endicularly; l'ibs prominent, 12
to 15 in number, broad fl a t -topped, with fla t, steeply sloping s ides, sometimes m a rked by one 01' two indist i nct lon gitudinal g I'ooves, gl'owi ng broadel', less elevated, and less shcl,l'ply a n g led neal' Pe 1'iphel'Y; hinge-line
shol't; left valve onl y slig htly convex, outline smoothl y cUl'ving 01' val'iedwith a depressed al'ea just undel' th e beak s ; l'ibs much as in th<l l:ight
valve, but ]] al'l'owe1' and h igher, more dist a nt, s ometimes slightly g rooved
III the centel',From the above description as well as from the fig ures ofBasa Penin sul a

Miura Peninsula

I
I Tatikawa stage
I
rn

Q)

W
0
J>.

~

0

H

0

i;;

p.

Kiorosi substage

8'" ~
W
I ~

01 ..0co::
K amiill"ahasi subs tage ;21'" '"iil0""01

K a miizumi substage

01m

01 t v."';:':

Q) -+"

01

+' Q]

S ol

I

Azu subst age

Naganuma substage~

Yabu substage~.

Dizodo substage.Smm

Mandan() substage;21'-....

I. . . K osikiya substage
Kos iba st.age

Kawatani subst age

W

....

0

Q)

....

co::

~

a

-+"

.~

co::

8

I~a naz a "Ta

stage

:@

00::

._O-+"rn"~.~

I K okumoto substage;:;

Tyoseih >lra subs tage.....--

Sakahata substage
Kiwada sllbstage
Seki stageI- -. - Q],.!:d~~"'O..........

Dusi stage

2

0

E-<

'-....

.....--

Q]

0::

co::

w m Z
Q)
en
co

co::

0

m

t>

co::

e
...,

rn

0

.;:::
'"

rn

Q]
.;:::

Q)

Sb1p.agI"(ij'Q)

"' bL

P> Q)
Q)bJj

'd

.~

I

Yam ate su bstage

m

Q]

'£::

-Tatikawa stage

Q)

'"
.8

'"
Q]

Q]

';:;

'-'

Q]

'"

p::;

.~

g :...
....,

Q]

OQ]

Q.

.§ ~ wco:: p.
~:;;Jm- - --cJ~~..0.:.

...,01
O::
~

'"

Q]

Q]

en

'-'

.8

'01
rn ...,

p::;

ZOO

i;;

;::
0
-=L
----

I

Toyo·oka period

I

Hayam a period-(162 ) - '-

I

1018

H.

Y ABE a nd K. HATAI

P. bellus given by ELDRIDGE and ARNOLD, it can be noticed thatthe number of ribs on the right as well as left valve exceeds thatof P. naganuman'l.os, which varies from 11-13. Beside the differ encein th e number of the radial ribs, it is also recognized that theumbo is slightly more swollen and the hinge-line less straight in
P. nagc6n'l.6maT/,'I.os than in P. bell'l.6s. These features are taken to
be of specific value in distinguishing the species of the Pecten
lC6q'l.6ealus-gronp.
The geological age and exact stratigraphical position of the
Naganuma beds, the type horizon of Pecten nagcm 'l.6manUS, hasb een a subj ect of considerable discussion, main ly because theNaganuma beel s is bounded both above a nd below by an unconformity. It h as h ither to been placed in the Upper Pliocene bysuch authorities as O'l.'UKA and NOMURA as well as SAKAKURA, a ndin the Lower Pleistocene by MAKIYAMA, YABE and AOKI. R ecentl y,
N. h:EBll}l, brought for th his studies of the Upper Musasino Formation, in which h e places the Naganuma beds in the Middle
P leistocen e as shown above :Our r ecently obtained material was derived from the Malumbang limestone at Sam.agui, Bongabon, Mindoro I slands, whic hoccupies the following stratigraphic position, according to theclassification by FAUSTINO : 2)
F ormation nameCharacteristic

Pl eistocen e

E levated coral r eefs and hi g h·lev e l riv er deposits
in many parts .

Guadalupe

Tnff beds in southwest em Luzon, with teeth of deerand sha rks.
Corallin e limestone in B ondoc Peninsula, T a yabas,
and Cebu . Yie ldin g fossil m arin e inve rtebrata.

Malumbang
Sauta Cruz
A lpa coSanta Cruz, Zambales, tuffa ceo us m arl;
Mount Alpaco, Cebu, t uff and sandy m a rl.

Vigo
Binangonau
BantanSand ston es and shales with oil·seeps.
Limeston es with Jarge Lepicloclllinas.
Shal es and grit with cOill and m arine shells.

Agno (Eocene)

Cong lomerat.e beds of th e Agno river.

B aruyen (Jurassic)

R adiolariau clIerts with Cer,ospha eTa and Dictyomitm .

1) N . IKEBE: Di visJ on s a n d Age of the Upper Musasino Formation. J our
Geol. Soc. Japan, Vol. 44, No. 525, pp ..583-589, 1937 lin J a pan ese)
2) L. A. F.U;S'l'IKO : Proc. Third Pan-Pacific Sci. Congr., Tokyo, Vol. 2, pp.
1535-1539, 1927.

-=-: ( 163 ) -On the St ra tig raphical Significance of Pecten nagcmmltanus

1019

In the I sland of Taiwan , P. nagan7~mam~8 occurs at num erouS
localities of the upper h alf of the Pliocene Byoritu bed::;l) of Mr.
AND02\ which occupy the following stratigraphic position:
Formation n ame

C ba racterist ic

Rai sed co ral r eef

Heef building corals associated wit h mollu sc~.

P lateau gravel

Thick g rave l hed free f, om fo ssi ls.

Ryukyu li meston eSt.r Htifieri lim esto ne, rare ly massive and porous.
Foss ili fer ous.

Syokkozan beds

Co nglomerat e inte rcalating sandstone laye rs in thelowe r part.

B yori t u beds

Alternating laye rs of s hal e and sandstone in t helower , shale predominating in t he uppe ,·. Fossils.

K aizan beds

San dston e and s ha le with ocassio na l thin laye rs of
lim estone a nd marl. CmLi a nd oil.

Karisa n beds

Black s lat.y sh a Ie, rarely with ma r] a nd s:l nclstone.

Hori s late and crystalline sc hists

Unconformities appear bet,veen th e Plateau gravel and the
Ryukyu limestone and between the Ryukyu limeston e an d the
Syokkozan beds, while the Karisau and th e Kaiza n beds ' are in
fau lt contact.
P. nc~gc~n'l.~?1Wn'U8 has also boon r eported from th e Siraharnabods in the souther n part of Izu Poninsu la, Contral J apan . It isther e r eprese nted only by a left valvo whose external surface isentirely cover ed by the calcareous matrix, a nd , alth ough it may
bo a form of the ]l amed species, thore is still room for doubting its
belongin g to th e named ono. Furthermore, ther e is also some datafor believing in the necessity for ? r estudy of the str atigra phic
sequence of the strata of southern I zu Penin sula, as th e lithicfacies u n dergoes consid er able latC'ral variation,' and eruptive rocks
1) II . YABE aud S. I-LI..c"\'Z AWA: T er t ia ry Foramini fe rou s Rocks of T aiwa n (Formosa ), Sci. R e p. Toholm I mp, Univ., Se,·. 2, GeoL, Vol. 14, NO.1, pp. 8- 9, 1930.
In a form er occasion it was stated that the R yflk yu lim est one unconformably
ove rli es the Sy6kkozan beds a t Hazan. However, it must be s tated at this placethat th e so-called Sy6kkozan beds at Hozan are not of the t.ype, and it is be lie vedthat the Upper part of the Byoritu beds anti t he part of th e Syokkozan beds arecontempo raneous wi th one an other, th e latter being a differ ent fac ;es of the for mer; likewise, a pa rt of the Ryukyil li meston e is a lso possible to be a different
facies of th e Syokkozan beds.
2 ) Mr. ANno in M. NA KAM UR,\ : J Ollr. GeoL Soc. J apan, Vol. 44, No. 526, p.
673, 1937. (in Japa nese)-(1 6 4 ) -H . YABil and K . H ATAI

1020

have made complicate and difficult the tracin g of the differ ent
rocks in the field.
MAKIYAMA1) , in his study of the marine stages developed ill·S outh K wanto, Japan, 'has r ecorded Pecten l CLquwttLS nCLgant{'?nanus
YOKOYAMA, from the Kanozanian stage, whose type locality is said
to be Mt. Kano -zan in Boso Peninsula. His stages, in descendingorder, are as fo llows:Stage nam e

T e rrace

Heigh t abovesea· leve l

4th, ri ver t errace

30 t o 40 m

Kiorosi
Manza ki

3rd, coastal plain

60 to 70m

E;'oclona j;'eg'ltt?'1s

2nd, wa nting

Substage name

Tatikawan
Naritian
Sematian

Kamiiwabasi
Azu
Kamiizumi
Kanozanian

Hitom i
Itiziku

1st, coast al plain

80 to 100m

A ll of these stages and su bstage names are r eferred to the
Pleistocene age by MAKIYAMA , and the lowest, or Kanozanian stage
is said to ovei'lie the Pliocene in unconformable r elationship.
P ecten nCLgantL?ncLntLS occur' in the lowest part (Itizik u sub.:itageof the Kanozanian stage).
SAKAKURA 2 ) records P. nagcmmncmus from the Sakahata beds
at T uzimori, wher e it i!3 said to be very common, and fr om thelower part of the Itiziku beds at Imokurno, both in Poso P eninsula.
Both beds ar e referred to the Pliocene by him. The stratigraphicalposition s of his P. nagant{'?nanttS, is shown below:
PJeiFtoceneInf.

Turnm aicn

Sables et gnw iers de Yabu
(Zon e fo ssilifere de Yabu)
Sahles de Di z6-10(Zone fossiliferes de D iz6cl6)
Argi le de Kasamori
Sables et graviers de Man dano
(Zone foss iliiere de Mandano)

Plio-Pleistocen e
Pliocene
Sup.

Satomie nMoy.

ISup. Sab les d'I tizi lm(Z. foss il. Hiz iku)
Moy. Argile de Yanagawa

A ltern. sab le, etargiles, et a rgile

1) J . lVIAKIYAMA, Jap. J our. Geol. Geogr., Vol. 9, pp. 21-53, 1931.
2) K . SAK,IKURA , J our. Geo1. Soc. Jap., Vol. 42, Nos. 506-507, pp. 11-13, 1935.
- ( 165)-

On the Stra t igraphi cal Sign ifi cance of Pecten nW7anwnantls

1021

A lt ern. argiles et. sa hIes de I-Iabusaw a
Argi le de Sambonma tu
Sables de HaFUmi(Zon e fo ssilifer es de Hoson o e t. K a burai)

Inf.
Inf. N isiha tien

Couches de Sakahata(Zon e fossilifere de Tu zimori)A rgil e dure de Kobi ragae!a i
Couch E's de Sek i (Sabl es e t g l'a viers tuffaces )MioceneConches de T oyooka,Ve have specimens of this species from the N aganuma beds
(type horizon) at Naganuma, Toyoda-mura, and Muraoka-mura,both in Kamakura.gun Saga mi provin ce ; from the Ninomiya beds
at Ninomiya, Nak a-gun, in Sagami; from the Ni sihigasa beds at
Nisihigasa, Akimoto-mura, Kimitu -gun , Kazusa province ; andfrom the Mandanoyama-bec1s at Manda noyama , Kimitn-gun, Kazusa . Besides, thoro is a q uestionab le specimen fr om the Sirahama
beds of southern Izu P eninsu la, I zu ; a questionab le species fr om
the "Ry ukyu " limestone beds in Okinawa-zim a , Ry-lllzyll I slands,
and the present Olle from the Malumbang lim es ton e of the Philippin e I slands.
Ther e is also a fragmentary specimen from the Hiradoko bedsof N oto, collected by the late Mr. T . MA'l'USIMA, a student of ourI nstitute, who m et a ver y unfortunate death while su rveying inthat r egion. Only a single right valve of P. n ngnnll,??Wn'LOS waR
found out of about 20 convex valves of Pecten laq'l-Lecwu.,s Sm·vERBY
from the Hiradoko beds. Sometime ago, Mr. T. KURODA (Venu s,
III (2), 103, 1932) , stated that very rarely P. nagcm~mwn~(,s isdredged together with living specimens of P. ln q~wc(,t7(,S , from off
Hizen, K yusyu. His case is strongly similar to the fossil. bearing
Hiradoko b eds of Noto.
To b e sta t ed at thi s place is the fact th at tho "Ryukyu "limestono d~veloped on Okinawa-zima in th e R yukyu I slands, wasonce sta ted by NOMURA and H A'I'AI 1) , that " Upon the data now athand , it seems more reasonable to consider the beds yielding thesefossils (listed in their article) to be a differ ent faci es of the SimaZll'i beds and not a part of tho RyukYll limestone complex". The
1)
1936.

S. NmwRA ane! K. HATAI:-

Trans. Pal. Soc. Jap., No. 12, pp. 336-33D,( 166 ) -1022

H. YABE and K. HA'l'AI

Simaziri 1) beds are known to be 'tratigraphically older than the
Ryukyu limestone complex, which it underlies u nconform ab ly.
Pecten ( Vola) sinensis SOWERBY, recorded by YOKOYAMA fromthe Upper Byoritu beds of Taiwan (Formom) is the same as P.
nagc£n~~man'us recorded by NO~1URA from the same beds.
P. nagc~rm~ma1ws has also been record~d from the Setana
series of southwestern Hokkaido by NAGAO and SASSA2 ) . Their
specimen was listed with a que,tion mark. Th e stratigraphic
horizon of the Setana serie831 and its generally accepted Pliocene
age, more or less qnite correspond,' to' the general occurrence ofP. naganwman'us, and probably corrE!sponds to the Upper part ofthe Byoritu and Simaziri beds of southern J apanese I slands.
Thu s, as has been shown i n the foregoing pages, there areseveral horizons of Pecten nc~ga1W111annS in the Japanese Upper
Tertiary; these may be arranged in the fo llowing way.
P. nagan'/.~11wn'us from tho Byoritu beds of Taiwan approximately conel'ponds in age to tho Malumbang limestone of thePhilippine I slands, and to a part of the Simaziri beds Okillawazima, and to the Setana serie'3 of southern Hokkaido. T h e one
from the Naganuma beds may correspond, according to the inter.
pretation of the stratigraphical divisions and geological age, to
the Nil10miya beds of Sagami, and probably the specimen r ecorded
both by MAKIYAMA and SAKAKURA may also belong her e. How,:ever, if the Kanozanian stage of MAKIYAMA is L owest P leistocene
and the Itiziku beds of SAKAKURA Uppermost Pliocene, a Dd theNaganuma beds as r ecently r eclassified by I KEBE of Middle P leistocene, and the specimen from the Hiradoko beds of Noto either
thereabout or somewhat youn ger in age, then it follows that thegeological range of Pecten ?'wgal'l//'~1nan~ ~s is from the upper partof the Lower or the lower par t of the Upper P liocene to the Middle
P lesitocene or slightly younger .
Ho,vever, as may be noticed, ther e are several small horizonsI1) S. No~nn~A and Y. ZINBO: Sci. Rep. Tohoku Imp. Univ., Ser. 2, Vol. 18,
No.3, p. 229, 1936.
2) T. NAGAO and Y. SASSA: Jour. Geol. SOl'. J ap., Vol. 41, Jo. 488, p. 233,
193<1.
3) T. NAGAO: Pl'oc. Fifth Pan-Pacific Sci. Congl'., Canada, A 7, 32, pp.24612465, 1934.
-(16 7 ) -

On the Stratigraphical Significance of Peci en naganumam,s1023

of this species in the Japanese Upper Tertiary depogits, but broadly
speaking, it is more common in the Upper Pliocene or Lower
Plesitocene than in other ages. Finally, tho geo logical age of its
occurrence and the stratigraphical position it may occnpy, all depends upon the association of fa unal elements found in the sanlehorizon and locality.
As the closing word of thi!" preliminary report toward studies
on the distinction between the Pliocene ond Pleistocene of J apan,
it may be said that Pecten nagan1~?nan1~S from. the Byoritu beds
generally has about 12 ribs on the right valve, the ones from the
Naganuma beds generally sh ow but 11, those from the Ninomiya
beds about 10, and the specimens from Higasa number about 12.
Thus, it may be possible that tho number of ribs on th e rightvalve and their r elation to the age of the beds in which theyoccur may yet provo to be of some aid in distinction of the Pleistocen e from the Pliocene in the Kwant6 r egion, Central J apan.
However, from the number of rib. , only taken into consideration,
it appears as if the beds at Higasa and the Byoritu beds wer eof the same age, and that the Nagnuma beds were g eologicallyolder than the Ninomiya beds; providing that the d ecr ease in
number of rib. ' on the right valve is in accordance with thesuccession of strata. Previous knowledge, however, does not allow
such a rash conclusion, and until the r eal relationship existing
between the various types of P ecten nagan1~?nant~S, that is to say,the number of ribs on the right valve and the stratigraphic
horizon in whi ch it occurs, to its associated faunal elem ents I S
known, conslusive r emarks are withheld for future study,

E xplanation of Plate 32 (17)(it; N atural Size)

1 . View of intact valves, showing their convexity.
2. 'Right valve, showing the t ypi cal flat ribs.
3. Left valve, showing the elevated ribs.

-(J68)-

1034

H. YABE and K. I-IATAJ

tllilJ.rfW~l::~.l: ~ j~III ~ )IIl'~~illt'):Rilll!lf.l: ~ nll:il!i; -tt t,;tLt::: 't>
YAMAvx~~~-iS-jl!!.vcJHll ~ ~l..t::: &. /l~ ,>. ::3?:;tL ~ a

7 -1 ~ '" e ;/~tn~CD

Pecten nctganumanus YOKO -M<i'C ~~t')~r~=-~llmr* ~;: g~ <)tWi'"'t> I: U:~ b ~Malumbang ;r:t1:F-*vcEi:i'" 't> I: c vxQ~VC ~'4li!r ;?? 't> /l~ , l'lkill:re*I[:01Jf~± J: ~ i§ 1~;J'1\: §tit t::: 't>

Samagui, Bongabon, Mindoro, P . I. jljf;r:t1iR:!EI-1t;r:tr.I'

I'C t\!:tf ~~ft" 't> :t1'Pl'- v ~ -C, :/fUB Eli t') t t') c iYl'l~.l:t il(;( L- iI"l-*ill t" 't> I: c HW t\?~!} t::: ~ a ;1\'lillv.t"*:·;: Pecten laqueatus SOWERBY K1fu-Elii'" 't> I: c ;?? ~, ~r L-l! :tl!!.~.l: ~ vx;fJ.Tc!.\» -CV!;t,,;tL 1::1t',f:';:~1&CD

P. laqueatus VCilt L::JHlI ~ Q >. I: c;?? ~, 191J -'Vftik*Hh,\t~1jU,U~:t'j1ill:1iG:xt~IJIH/lIl lp.*fl'~* J: ~ fUfHt Q

P. lo.quealus -;{:j;;;[i: 30 11m c ;!tK P. naganumanus t')-;{:j)%X 111M;?? ~ 0'*~ K;1\'-fill t') jl!!.'l'tn~H\;;)Ul!!.~Ilr'J9)tW K)ik l! Hfj-:il!i;-j- a.

- - ( 1 6 9 ) -'

Jour. Geo). Soc . .hpall, Vol. XLIV , Pl. 32 (17) (Y..\BE and I-L'l',u)52.

On a '-Graphularia-Like Fossil from · thePleistocene Tokyo Beds of Tokyo
By

Hisakatsu YABE and Toshio SUGIYAMA(Contribution from the Institute of Geology and Palaeontology,
Tohoku Imperial University, Sendai, Received Sept. 25th. ;.
read Sept. 30th., 1937)

The interesting- fossil which forms the subject of this shortnote was collected some thirty years ago from the Tokyo beds ofAtagosita, Siba-ku, in the city of Tokyo, by the late G. YAM AKAWA, ?-nd offer ed by him to the senior au,thor. It is a slendercolumnar calcareous body, somewhat bilaterally symmetrical, flattened on two opposite sides, and radially fibrous in cross-section.
Apparently it is . a fragment, of an axis of a certain Alcyonaria,
most likely of the Pennatlllidae, and. it strongly r eminds us of thegenus Gmphula?'ia by its peculiar form and structure.
The genus Gmphula?'ia was established by M. EDWARDS andJ. HAIMEll in 1850 on Gmphula?'ia wethM'elli M. EDWARDS andJ. HAJME from the London clay of England. It was comparedby them with the similar axes of the living Pennat~da, Pavonaria,
Umbella?'ia, Lith~~a?'ia, Ve?'etellnm, and Vi?'gula?'ia, and. it was
found to disagree with all of ~hem; The genus2l now includes
some 15 species, ' beside the genot:vpf\,. mostly from the Palaeogene
of. Europe; thef'P are, G. ambigua MORTON from the Senonian of
New J ersey, North America, G. g?'on~ua lli NIELSON from the Cranialimef'ton(J of Denmark, · G. sp. from the Palaeocene of Sweden, G.
I) M. EDWARDS and J. HAIME: A Monograph of the British Fossil Corals
pp. LXXXIII and 41, pI. 7, figs. 4, 4 a-e.
2) J. FELIX: Anth ozoa n eocretacea. Foss. Cat. Animalia, pars 7, p. 244, ]914.
Anthozoa mio,c aenica, ·ibid .• pars !l5, ' p. 297. Anthozoa plioraenica et pleistocaenica, ibid., pars· 44, - p. 502, 1929.
-( 170) -1228

H. YABE and T. SUGIYAMA

belgica VINCENT, incerta D'ARCHIAC, desertorum ZITTEL, and perplexa DE GREGORIO from the Eocene respectively of Belgillm, thePyreneef', Egypt, and Alabama in North America, G. beY?'ichi
BRANCO, brancoi v. KOENEN, brauni BRANCO and crecelii ANDREE
from the Oligocene of Germany, G. sp. from the Oligocene of
Denmark, G.sp: and 'barbara POMEr, from the Miocene 'ref'pectivelyof Austria, and Algeria, G. rob.inae McCoy from the Miocene ofAustralia and New Zpaland, and finally G. sene8cens TATE from
the Miocpne of Australia. The last two are the only sprcies
hitherto recorded from the borderlands of the Pacific.
The generic identification of these forms' are doubtfnl, unlessthe name Graphularia is nsed as a form-genus for fO'38il axes of
the alcyonariancorals more or less similar to those' of theliving genus Pennat'ttla and its ,allies.. Perhaps 'there is need ofred~fining ,the genus Graphularia for the modern use based, on afun, knowledge 9n the structural featUres of the axes of living
forms, which we are now lacking. In the original sense, Graphularid
characterized by' its authors ~s, "Corallumstyliforni;
st~aig?t" v~ry long, cylindroid towards the }o~~r e~tr~mity; 's\lb~tetrahedral at the upper part, and presenting on one side a t:>roadshallow f~rrow. Tram;verse section showing the existence of ~t~in coating, and a radiate structure in the body of coral.'~ . The
genotype has on its suface "a multitude of small, longitudinal,
closely-set striae, that seem to indicate a fibrous structure ", underthe microscope.'. '.'_At least, the fossil from the Tokyo beds now in concern div~rges not little from the G?'aph'ttlaria in several detailed featl~re~as the following description shows; as much as, there !S a. great
possibility of its belonging to one of the living genera or evenliving species, being, dflrived from a Pleistocene de.posit, it is, l~erely
provisional to assign it to Gmph'tLlaria and only for practical need
to apply a new specific name to it.
. . "

'is

..

~>.

Graphnlaria (?) yamakawai, n. sp.
Figs. 14.

.

.

".,

I;

,.".

'{

''',

A calcareous columnar body, broken at both ends and 13mm~ong.
Straight, almost bilaterally symmetrical, flattened on two opposite.sides\
1.9 and 2.7 mm in shorter and longer diameter respectively'; radial, and.
-

(171)-

On a G?·oplttllal'ia-L ike . foss il fr om t.il e 1'Ieistccene

1229

zonal stru cture dis tin ct in Cl'oss-sectioJJ, (' utel'Jllos t ZOJJe .thickest on lDflated sides nnd nllll os t di;;appeal'ing 0 11 fiat tc]] c(i sides. F lat tened sides~lmo s t smooth on surface, thoug- It cxhi bi ting un(lel' llIagnification llumerous,
extremely fill e, sl ightly elevated, lon g itu di nal striae ; th ose Oll ' inflatedsides more pl'omin ent, being b roade r and hi gll el', eft en cUlmina ting tot ubel'cl es pitted on tip, mostly longitudinr.J, but occas ional ly oblique.

~

~
YABE

and ScG IYA>L\ [1"0111 tlie
Pl eistocene Tokyo be d ~ of Tokyo. x 10
Fig. 1. Oue of flat t.l'll d sidcs.
Fig. 3. The opposite side.
F ig. 3. On e of inflatcd sid es .
Fi~. 'J. Tr.1lls\'CrSC sect ion; tl.e radial
strL1 ctnre is morc di~tj n cl on tLc specimen th an in illis f:igurc.
(; ?'(ljliwia'rict yam a l:mwi- - (. 17~ )' -.

- - - ----.-;rrc,-,-'U TITIer-;:,-p=15 IIOlll WSUOIe M ila orIVIlyazlI,

Wakasa ay, ane
the latter in an off-shor0 material from Kannolll'a, the southeast
coast of Sikoku.
Secondly, thi s foraminifera faun a is quito differeJJt ill its composition from those prevailing ill the younger Neogene marine-( 174 ) -]230

H. YABE and T. SUG IYAMA

R e?ncwks : It is a question whether the flattened sides are a
primary feature of the cora]]um or due to erosion; the sides are
not only narallel to each other , but are also nrovided with short,

K. ASANO

1232

formations of this district. Thirdly, it is significant in lacking
Cas8id~tlina; a genus with a very ch aracteristic di,tribution of its
species in the Japanese Neogene formation s, and the absence of
its species in this deposit suggests 1) the warm 2) shallow-watercondition and 3) a complicated migration of the foraminifera inthis district during the latest geological ages. The abundance inindividual and specific numbers of the three genera, Q ~6inq~6e ­loculina, Spi1·olowlina, and Elphidi161n in the deposit is also
anoth er indication of its sh oal water origin.
The specifically determined foi·ms are given 111 the following
list.
Family Textula riidae :Text~tla?·ia g?·amen d'ORBIGN Y
1'. conica Cl'ORBIGNY
1'. haue?·ii cl'ORBIGNY
1'. ccmcleiana d'ORBIGNY

1:.

commonfew'few
l'a rcrare~t eclai ASANOFamily Verneuilindae :Ga~H'lrY'i na (Siphoga~tcl?·yinct)

1natusimai n. sp .

rare

Family l\1iliolic1ae :Q ~t inqtte lo c~dina

sub cu·enar-ia CUSH MAN
commonQ. semimtlum (LIN NE)
fe w
few
Q. vt!lgaris c1'ORBIGNY
ral'e
Q. cl'u templei d'ORBIGNY
Q. l-innaeana c1'ORBIGNY
l'are
Spj,·olo cul-ina ant·i lla?·~! m d 'ORB IGNY
commonS. canaliculatc! d'ORBIG NY
commonH a~!e ?·ina /mgilissi1l'!U (BRADY)
few
ablmc1ant
l'ri lo c'1l linc! trigo1n!la (L A:AfARCK)
1'. t?·iea?·inata c1'ORBIGNY
few
T . te?·qt! emiana (BRADY)
rare
li'amily Lagenicla e : Lagenc! stric!ta d'ORBIGNY
very rare
L. squamosa l\10NTAGU
vel'Y l'are
L . hexagonc! 'WILLIAMSON
very rare
Family Polymorpbinic1ae : G ~! tt~!lina o?·ientalis CUSH:r.rAN & OZAWA
fe w
P seuclopolymorphina ishikawaensis CUSHMAN & OZAWA f ew
P . olmwaensis CUSHMAN & OZAWA
few
P . incl·ica j aponica CUSH:AUN & OZAWA
l'are
Sigmoidellct kagaensis CUSHMAN & OZAWA
few-( 175 ) -On a G'1'ophuZctrict-L ikc Fossil fr om t.he l'l eistrcene

1229

zonal stru cture di stin ct in cross-secti on, Gu te l'l llost zone .thickest on ]IJ flated si des nud n1l1l 0st d i~appe:ll'ing Oll fla t tened si des. Fl a ttened sid es~l mo s t smooth 011 surface, t hough ex h ibi ting unde r magn ifi ca ti o ll numerous,
extremcly fill c, sl igh tly elevate d, longitlldinal stri ae ; th ose O ll ' in flat ed
si des more prom in ent, bein g broade r and hi gher, often cu lmina t in g totubercles p itted on tip, lIlost ly lougitudiu d, but occasional ly obl iqu e.

3
J

..
.(-

~
(:1'({jilwim'ia yamal.·(t,1I:a.i YABE and SCG 1YAMA::

fr o l ll 1Jl t)Pleist oce ll e Tok.\'o beds of Tokyo. x 10
Fig. 1. Oue of f1 at t.(' n e ~1 s ides.
Fig. 2. The opposite side.
Fi;,;. 4. T" ,l nS\'el'sc section; tl.c radi al
Fig. 3. On e of inAat,cd s ides.
stru cture is lli orc di~ t. j ll cL on LI :e specime n llJan in this ii g ll l' C.
-- ( J7j )' -

.

1230

H. YABE and T. St;GIYAlIIA

Rema1'ks: It is a question whether the flattened Dides are a
primary feature of the corallum or due to erosion; the Dides aro
not only parallel to each other, but are also provided with short,slightly elevatod longitudinal striae, though considerably finor
than thoso on the oppoDito sides; wo took the feature as of primary nature.
The specific namo is dedicated to Gordon Y.UIAKAWA, who
contributed vory much to our knowledge on the younger Cenozoic
fOEsils of the Kwanto region, durillg his very short but exceedillgly succei"sful career. His works will show his remarkable ability and his much regretted death at a young ago 'was a great shockto the Japanese palaeontology.
Tho holotype is now stored ill tho Institute of Geology andPalaeontology, Tohokn Imperial University, Sendai, Japan. Reg.
No. 7149.
Local·ity: Atagosita, Siba-kl1, city of Tokyo.
Geological f01'mation: Tokyo beds, Pleistocene.

JfUjnlf;'llolk~!irFCDjIOjOf:b·;lf M. EDWAHDS ]X J. HADIE iI{fjiJlll!: L-t:: Graphularia,::::jJLrelCD1t;fiil~,*~ ~.f1.. -ct:: 0 JltJi;jf;: IHn]ji::/1:I* :o:fillfitJ:v':O' ;~~15 ~!p!-,td{, m.t~CDm~§(Pennatularia) CD axis Gl)liff~iI~7C5}I;:ITli.f1..-ct":,,·GI)-r:lEf1i1t..::oJi;jGl)VtJgli:.u*t..:,,·o-(173)-

53.

Pleistocene Foraminifera from the
Hi radoko Shell Beds, Noto
Peninsula , Japan
By

Kiyosi ASANO(Contribution from t he Institute of Geo logy and Palaeulltology,
T6hoku Im perial Univers ij,y, Senria i, Japan, Received
Oct . 20th . ; read Dec. 18th., 1937)

The material of the presen t article was collected by tho late
Tadao MA'l'USIMA of OUr Institute from Hiradoko, Syoill-mura,Syu ~u-gun, I sikawa prefecture (N oto peninsula), where a ma rin e
fossilifer ous deposit of sandy mud form s a terrace some 25-40 meters
high. The deposit is rich in fossil ,·h ells in its upper half, andis known under th o name of the "I-liradoko shell beel". It hal:;a mor e extended d istribution in the enviro ns of th e village SyoiJJ.
The fossil content seems to vary greatly according to the k ind of
sediment, fossils being fragmental in the marginal part of deposition and a bu ndant and well presor ved at I-liradoko .
Th e deposit cOlltain s a rich foraminif('ra fall na, beside mollusca,
uryozoa, sponge-spicules and (liatom, '. Its molluscan fauna has
already been treated by Dr. M. YOKOYA~ r A, ML'ssr s. K. MO'l'IZUKI
and Y. OTUKA ind(~pendelltl.Y ; the latter auth or clll1Jnerated as
many as 99 species of m.ollusca from Hiradoko.
The foraminifer a faulla to which I am solely in concerll isinteresting in several r espects. First.ly it comprises maHy warm water forms; el'pecially Amph'i,stegina mdiata (FrcFI'l'EL & MOLL)
and So?'i tes ma?'ginctlis (L A ~ r ARcK) . These two are now common. in tropical and subtroEical seas, but seldo)):l living i n the seas
bordering Honsyu; it is as exeepLiona.l cases that I lately obtainedt he for mer species from a shor e sand of Miyaz ll, , Vakasa bay, a nd
the latter in an off-shore material from Kannol1l'a, the southeast
coast of Sikoku,
Secondly, t hi s foraminifera fauna is quite differ ent in its COIllposition from those prevailing ill the younger Neogene marine-( 174 ) -

K. ASANO

1232

formations of this district. Thirdly, it is significant in lacking
Oassid1.tlinaj a genus with a very ch aracteristic distribution of its
species in t he Japanese Neogene formation s, and the absence of
its species in this deposit suggests 1) the warm 2) shallow-watercondition and 3) a complicated migration of the foraminifera inthis district during the late, t geological ages_ The abundance inindividual and specific numbers of the three genera, Q'l.~inque­loc'l.tlina, Spi?'o locl&lina, and Elphidi'l.~?n in the depo, ·it is also
another indication of its shoal water origin.
The specifically determined forms are given In the following
list.
Family 'rextulariiclae :Textttla1"ia g1'amen c1'ORBIGNY
T. conica. Cl'ORBIGNY
1'. hattel'i-i cl'ORBIGNY
1' . cctnde·i ana cl'ORBIGNY
T. . tteclai ASANOFamily Verneu ilinc1ae :Gaud1'yind (Si phogaucll·y·ina) matttsimai n. sp .
Family lVliliolic1ae :Qttinqtte lo culina su barenarict CUSHMAN
Q. semimtlttm (LINNE)
Q. vttlgads c1'ORBIGNY
Q. dtttemplei cl'ORBIGNY
Q. l-innaeana c1'ORBIGNY
S pil·olo cttl·in ct antilla1'u m cl'O RBIGNY
S . canaliculat(t cl'ORBIGNY
H atte1··i na fmg -iliss·i ma (BRADY)
Tri lo cttl-inct tr·i gonu la (LA~fAR CK)
T. tl·ical··i nata cl'ORBIGNY
T. te1'qttemiana (BRADY)
Family L agenidae :Lagena striata cl'ORBIGNY
L. squamosa 1VION~'AGU
L. hexago na \ ;VILLIAMSON
J!-'amily Polymorpbiniclae : Gttttttlina O1·iental·i s CUSHlIUN & OZAWA
Psettdopolymorphina ishilcawctensis CUSH M AN & OZAWA
P. olcmvaensis CUSFU,IAN & OZAWA
P. ind·ica j aponica CUSHlIUN & OZAWA
Sigmoidellct lvagaensis CUSHMAN & OZAWA-( 175 ) -commonfew'few
l'ar er a rel'arecommon
few
few
rare
r are
commoncommonfew
a btmc1ant
few
rare
very rarevery rarevery nne
few
f ew
few
rare
few

Pleistocene Forllluilliferu from" the Himdoko Shell Beds
Family NoniOllidae:Nonion boueanum (d'ORBIG:SY)
l'se'ucZononian japon-ic'l ASANO
Elpkid-illm adrcnllm (CUSHlIIAN)
E. crisp lim, (LINNE)
E. jensell-i (CUSH1IIAN)
E. Sltbgra1Zlllosa ASANOFamily Penel'oplidae:
Sorites marg"in~lis (LAlIIARCK)
Family Buliminidae:Loxostoma karrer-iana (BRADY)
Reussella spinuZna (REUSS)
Chrysllid-inella d-in~a~'pha (BRADY)
Siphogel1e~'-inn ~·(tph((n(t (PARKER & JONK3)
Family Rotaliidae:Disco~'bis OJ'biclIlaris ('l'ERQUEM)
Eponides repantlus (FICHTEr, & ~rOLL)
Rolf/lilt japonicn IIADA
Family Amphistegiuidnc : Al1~ph"isteginct rltdiata (FWHTE & ~IoLL)
Family Cymbaloporidae:CYll~1:Jalopora, bl'ady-i (CUSH.MAN)
Family Globigerinidae:Globiger-ina Dullaides d'ORBIGNY
C. triloba REUSS
G. infiata, d'ORBIGNY
O~'b/(lina universlt d'ORBIGXY
Fa.mily Anom::tlinid::e : Planulina 1Ouelle~'storfi (SCIIWAGER)
Cibicide,~ lobatulHS (WALKER & .JACOB)
C. ~'eflllgens PIONTFORT)
C. pswdozmgerianus (CUSHMAN)
Family Planol'bulinidac : Acerblllina -inhael'ens SCHULTZE

1233

rnre
few
common
few
l'are
rare

few
rare
ra1'e
rare
few
rare
rare
rare

few

rare
very rarevery rarevery rarevery rarefew
rarevery rare
1'a1"eBesides 51 species enumerated in the above list, there are::;everal indeterminable ones belonging to the genera, Qninqnclowlina, Tc:rtula1'ia, T1'iloC'ulina, G'llttnlina and Disc01·bis.
Remarks to the Foregoing List
Family '1'ext1tlm'iidae
5 species were discriminated of genus '1'ext'ula1'ia, and the- ( 176)-

K. A S ANO

1234

comm.onost oue is '1'. g?"CLmen d'ORl3IG:-<Y. It is a species commo nin the sh allow waters of the adjacen't seas of J apan. 'J.'. ueclai
ASA.NO was originally de scribed from the Pliocene of Mnraok amlua, K anagawa prefecture.
F amily Ve?'/wui liniclae
Genus Gcmd?'yincL d'ORBIGNY, 1839
Subgenus Siph ogaucl?'yina CUSmIAN, 1935
Gcmd?'yincL (SiphogcL1Lcl?'yina) mCLtusimai n. sp.
Text-figs. 1-3.
'l'est wedge-shaped, eurly portion tt'i se rial a.nd t l'ia ng"lli u l', later portiol!
bisel'ial and somewha t compl'ess2c1; OL1e ed.g'e div ided, rcsulting t o a ge nerally qu ad r angula r a.sp ect of t est;
chambe.:s indi st in ct, n ot inflated;s utu r es oblique, ver y s light ly dcpressed ill la tel' on es ; wall veryfine ly a re naceous; a p erturc a small,
low op ening of inn er margiJl oflast-formed chamber. L eng t h up to
0.5 mm .
1

3

2

HoloLype (Reg. No. 21'1L13,
Institute of Geology and Palaeontology, T 6h oku Imperial Uni
versity, Senc1ai , J apan) from th e(,' awl1'y ina (i:iiphogcmci;'Y i? I{()
matt/ Rimai n . sp.
Hiradoko sh ull bed;;, Hirac1oko
Sy6in-mura, Noto P enin sula, J apan. ColI. by the late T. MUTGSHIA.
Thi s species somowhat r esembles G. (S) w?"ightiana MrLLE'l'l'from the Malay A r chipela.go, bnt b as lesti numerous ch amber swith le::;s promin ent edges.
Family .LlIiliolidcLe
Ll genem and 11 i'pecies of thi::; family were di::;tilJgui:;hed in
the prese nt material. These spec ioc; live mostly i n war m, shallo\l',clear wate r, aDd are pl'UfOent in ablllldance ill w me deposit.:; laid
down LUl(ler thof'e cOllllitions.
Q'ninqnelocu,lina: Of the 5 identified species, Q. snue?'enCL?'ia
CaSI-HlAN is most common. It i::; a BU btl'opical sp ecies originallydoscribed f ro;n off Singapore i n 13 fatholUi3, and sometimes foundin tho Neogen e dep osits of J apan. The twO stri ated form. ' Q.
-

( 177 ) -

Pleistocene FOl'a/:n inifera fro111 t.be Hiracloko She ll Beds1235

cl~6templei d'ORBIGNY andQ. linnnennn d'ORBIGNY are rather rarein the present material, although they are now common ill warm
shallow water s.
Spi1'o l oc~di1W:
2 species, namely S . cnnnlicu lntn d'ORBIGNY
and S. nntill ct1"n1n d'ORBIGNY were distinguish ed. These two forms
are very common in the Plio-Pleistocene and r ecent faunas ofJapan , as well as in the present collection.
Hnue 1'inn: H. fragilissimC6 (BRADY) only was found.
J.'1'iloc'lLlinn: 3 species wer e found. J.'. i1'igo1wln (L AlIfARCK)
is most abundant in the present material. The others 'P. i1'icn1'inntn d'ORBIGNY and J.'. te1'q16eminnn (BRADY) a re rather rar e,
althoug h they ar e common in the seas adjacent to Japan.

Family Ophtlwlmicliiclc6e
Ve?'tebmlinct: V. st1'intn d'ORBIGNY only was found. Thi s
is one of the common species of foraminifera from the Byoritu
beds of Taiwan.

Family Lngeniclne .
The material from Hiradoko beds has only Lngenn of thisfamily.
Lngenct : 3 species of this genus were rarely found . These
species are more common in moderately deep oceanic waters thanin shallow waters. In the ad'acent seas of Japan, th ere is a notable increase in both individuals and species in depths exceeding
100-200 meters.
Family PolymO?'phiniclne
3 genera and 5 different forms were distinguish ed.
G~6ttulinn: G. o?'ientnlis CUSHMAN and OZAWA was only found;
this is a species originally described from t he Upper Pliocene of
Sawane, I sland of Sado.
Pseuclopolymo1'phinn: 3 species, namely P. ishilcntunensis CusHMAN and OZAWA, P. olc16wnensis CUSHMAN and OZAWA, and P. inclicn
japonicn CUSHMAN and OZAWA were present. All are characteristicof the Japanese Plio-Pleistocene.
Sigmoiclella: S . lcagaensis CUSHMAN and OZAWA is the only
species found. It is very common in the Pliocene and recent- ( 178)-

K . ASANO

1236

faunas of Japan.
Famil'y Nonionidc£e
Of this fam ily, 3 genera and 6 species were found.
Nonion: E . bo'uearn£?n (d'ORBIGN Y) which is common in the
Japa nese Neogene is also pre,·ent.
Pse1£dononion : This genns was based npon a ma terial fromthe P lioc()ll e of Sagami, J apan. Its gellotype, P. ,iaponict£?n ASANO,
is often found in the Hiradoko beds.
Elphidi'u?n: Among the 4 species of this genus, E. advent£?n(CUSHMAN) ·and E . C?'iSp1.£?n (LINNE) were most COllllnon ; both a reabundant in the Japanese Neogene. 0 11 the othc'r hand, E. jenseni(CUSH1'I'IAN) and E. 81£bgmn1£losa A.SANO arc not common i n thocollection.
Family Pene?'oplidae
According to NORTON, "members of the Pe'n eroplidae are almost never found below 60 fathom s and are r estricted to warm,
shallow water zone". In the present material, SO?'ites nw?'ginalis(l.JAMARCK) belonging to this family, was found. This specie'S bas
110t yet been known from the Japan Sea, both fossil and r ecent.
F amily B1£li?ninidae,

Loxostoma : L . lca?'?'e?'iana (BRADY) is the single represen1ativeof thi s genus.
R enssella: R . slJinnlo,~c£ (REU ~S).
Ch?'ysalidinellc£: One "pecie8, C. dim o?'p ha (BRADY).
SiphogenC?'ina: S. mplwna WARKER and JONES) was fOll n(l.
Its di,tribution ranges from the Kerimba Archipelago acrOfiS til('
Indian Ocean to the Pacific where it extellCls northward to .!apan,
Guam and the Hawaiian I slands, and southward to Ne'w Zealand.
Family Rotaliidae

Disco?'bis: Only one specie.. , D . o?'bic'l.da1'is (TERQUEM).
Eponides: Only one species, E. ?'epand1£S (FICHTEL & MOLL) .
T his is vory abundant in Siogama Bay, Japan.
Rotalia: .R. japonica HADA, fir st described from Mntn Bay,Japa,n was found.
-( 179) -Pleist,ocene F oraminifera from the Hil'adoko Sbell Beds

1237

Family Amphisteginidc~eAmphi~tegincL : Foraminifera of this geull, , a re often abundanton coral r eefs aud in warm sqallow waters of the Indo-Pacific, butless abundant elsewh ere, In Japan, A. mdicLta (FrcHTEL & MOLL)
is known from Miyazu, vVakasa Bay, Kannoura on the so uth·,east
coast of Tosa and Sagami Bay. The presence of thi.s speciefl,
together with So?'ites ma?'ginalis (LAMARCK) above noted, is a good
indication of 'warm, shallow water deposits.
Family Cymbalopo?'idae
On ly Cymbalopom bmdyi (CUSHMAN) was found.

Family Globige1'inidae
The genera of this family comprise pelagic species. Thoughcarried by oceanic curr entR every directions, t here is a marked
decrease in num.ber of the foraminifer a of the Globigerioidae inthe cold regions or embayments. The rare OCCllrrence of .theseform s in the present matel'ial is by no means an indication of i tf-'
<leposition llnder open-sea conditions.
Fam ily Anomalinidae

Planulina : P. w'lLelle?'sto?ji (SCHWAGER).
Cibicides: 3 species weI' sdistinguish ed in the collection. C.
lobat'l.d'l.LS (WALKER & JACOB) is rather common, but C. ?·ef'l.dgens(MONTFORT) and C. pseudo'l.mge?·ian'l.Ls (CUSHMAN) are' rare, these
species ar e abllndant in the adjacent seas of Japan.
Finally I wish to offer my warm est thanks to Prof. H. Y ABEof the Institute of Geology and Palaeontology, Tohoku Im.perial
University, Sendai, Japan, for the permi13sion to publish this flhort::lote on the one hand and for the various suggestions given me
luring the preparation of thiE article on the other.

- ( J80 ) -K . ASANO

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Proceedi n gs of the P a l a eontolog ica l Society of Jap a nlIiHIl 12 frIO 9 H 25 for~M~!&~v<::lj~Lr'HHill.T C;§1m5/;!;- 29 '« )0 ~#ii1il:1\t:;l(;:I'C Fr!Ii'i1ltmHI?k C9 !in Lo

On a G1'aphulm'ia-like F ossil f rom Tokyo. U\;ilfI )..

Hisa katsu YAllE and Toshio SUGIYAMA
A Gotlandian Clathrodictyon from Korea. U\;f.JY)

Hisak at su YABll and Toshio SUGIYAMA. ~'"}/(.iJlt~J!g*291~jfjJ~11'1t15 (~ 2 'l*) (1\';i1F1)
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On t he Stratigraphical Significance of Pecten nagcmumamts
YOKOYAMA, and its B ea ring on th e J apanese Neogene. U\;i'.!iD
H isakatsn YABE and Koto ra H ATAI

EPj;:gf D ioclO1'a V<::J/X II' L
A Note of "Tapes " ezoens'is YOKOYAMA from the Poronai

Series.

Takumi NAGAO!fJr&..~~Ht V<::}j~1t Q iJik!lftlliJJ4M C9 fJ\l{i![v<::/MdT Q-5/§'*:;i(On the Limbs of Ni7Jponosau1'us sachalinens'is.

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Takumi NAGAO

On Some R emains of Desmostylus recently acquired fromJapan.

Takumi NAGAO

A Schematizecl Fannal Succession of the Japanese Neogene.

C1-1;l'.ft)

Kotora HA'l'AI:!M =.PJ\U\07~~,tt!; ~*2fl!}1I' L .£-~~C9~ EUII JJ(i!mr.k***-~ t7t~~~ltJm /l!r!l!t;f,{I1gf~~*2M:1?J 1t15

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15
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~II

SYSTEMATIC INDEX[Note:E very r eference is to t he nu mb er of ar t icle.]

PALAEOZOOLOGY'Protozoa
ASANO, K. : P.eudononio71 , a New Genus of Foraminifera found in Mur aolm' l)1u1'a,
K amakur a-gori, K anagawa P r efecture. 15.
New Species of F ora mi nifera from Aki·g un. T osa Province, J apan. 25.
A Pliocene Species of Ell, /tidiwn f rom J ap an. 44.
Pl e ist ocene F oraminifera from t he H iradoko Shell Beis. Note P eninsul a,
J apan. 53.
ASANO, K. and NAKAMURA, M.: On t he Distribut ion of the J apaJleseSreciesof Cass'idu/.',:;. a. 34.
HAYASAKA, I.: A T wiJmed 01' Dou ble F ossil Shell of Rotal'ia. 7.
HUZIMOTO, H . and NAGASIMA, 0. : A New F ossil·Locali t y of E ocene Fol'a'
minifera in t he Upstream of T aroko·ky6 'l'aiwan . 13.
THOMPSON, M. L.: Nagatoe!la, A New Genus of P ermi a.n F usulinids. 9.
YABE, H. and ASANO, K . : Ne w Orc unence of Rotal'iatinc! ill t he Pl iocen e ofJ ava. ·3R.

Coelenterata
MA, T. Y . H.: On t he Devoni an E qu ator locat ed by th e Gro wth R ate of
Tetracorals. 14.
- - : On t he Ordovician Clim ate of t he Nort he rn H emispb ere deduced fromt h e Growth R at e of T abulate Cor als. 48.
NOMURA, S. and HATAI, K.: A Note of t he F ossil Marinc Fauna from
Oldn awa·Zim a, Ryukyu Gl'oup . 12.
YABE, H. and SUGIYAMA, T.: Sun dry Notes on Li ving ",wI Fossil T't!bipo?'a.
32.
- - : Gotlandian Clathrodictyon fr om T y6sen (Korea) 50.
- - : On a Graphulm·ic!·Like Fossil from t he P leistocene Tok yo Beds of T ol;yo.
52.

Echinoder mataNISIY AMA, S.: On t he Occurren ce of Tem.notrem.a rub?'um in t he P leistocene
of TUl'umi, Kwaut6 Region. 8.
NOMURA, S. and HATAI, K. : A Note of t he F ossil Marine F auna from
Ok in awa·Zim a, Ryukyu Group. 12.

Molluscoidea
HATAI, K.: A Short Not e on t he P Ullctation of t he Brachio;10::l. Shell. 27.
Brachiopod Morph ology: Stud ies on t he Anteri or and Lat eral Commissures of Certain F or ms and the Curvature of t he Beak, their R elationshipand Morphological Impol'tancc. 29.
NOMURA, S . and HATAI, K.: A Note of t h e F ossil Marine F aunH from-(183 ) -Okinawa-Zi ma, Ryu);yu Group. 12.
SAKAKURA, K.: On lJlic1'oJ;o1'ina art icula/ct (FlIBHicIUs), a Cbilost om atous. Bryozoa. 11.

Mollusca
KANEHARA, K. : P lioce ne Shells from th e Tesbi o Oil Field, I-Ioldmid6. 4 1.
- - : On some Neogene Shells h om J apan, (Part I). 43.
- - : 1'1 eogene Shells from th e Etaibets Oil Fi eld, I-Iokkaido. 45.
KOBAYASHI, T . : Restuby on lJIanchu1'ocem s with a Brief Not e on tb e Classific ation of Endoceroids. 4.
NOMURA, S. and HATAI; K.: A Not e of the F ossil Marine Fauna from
Okinawa-Zima, Ryukyu Group. 12.
- - : The , Geologic Significane of th e Recent Mollusca 'from tb e Vicinity of
I sinom aki, Rilmzcn . 22.
OINOMIKADO, T.: Som e Molluscan Remains from 't h e Pleistocene Deposits of
the Kwanto Regi on. I.
- - : . Molluscan Fossils from the Pleistocene Deposit of Sisinai in T6betu-mura· l sikari-g un, I-Iokl{aid6. 20.
OTUKA, Y.: Se1'1'ipcs in J apan. 2.
- -' : Pliocene Mollusca from ·Mangazi in Koto mo-mum, Akita Pref. , J apan. 21.
- - : Diodom in J a,p an. 49,
SUZUKI, K.: Some Fossil T en estrial Gastropods from Tuizi. Kuzuu-m ati, T otigi
Prefecture. 3S.
SUZUKI, K. and ICHIMURA, K.: Molluscan F ossils from the Raiocd Beach
Deposit of TAKAl, Tateyama-Hozy6·m ati, Ti:ba Prefecture. 2.0.
TAN, K.: On t he Shell Stl'uct urc of C'mssatelz.ites jOlcolatus (Sow.. ) IS.
TEICHERT, ' C. ': Polyclesmia canal·ieuiata LORENZ, aJl Ordovician Act inoceroid
Ceph alopod. 42.
YABE, ·H. and HATAI, K.: On th e Stratigra.phical ' Signi.fi cance of Pecten
naganumamts YOKOYAMA, and I ts Bearing on t h e Japanese Neogene. 51 .

Arthropoda
KOBAYASHI, T.: The W orld-Wide Bist);ibution of the Rib eil'ioid in the Ordovician P eriod. 16.
An Occurrence of a .N ew P er mi an Pbyll ocarid i u Soutb Cbosen . 35.
R est udy on th e DAMES' Types of th e Cambrian Trilobites fl 'om Li aotung ,37.

MA. H. Y.: Ogyg·ito'iclcs yabei, a New Species of Trilobite from th e Tsinan Lim est on e of Shantung, China. 46.
NOMURA, S., and HATAI, K.: A Note of t he Fossil Mariue Fauna fr om
Oldnawa-Zim a, Ryukyu Group. 12.

Vertebrata
OKADA, Y.: A Fossi): Frog from Japan. 30.
NAGAO, T.: Dcsmostylus mimbi/;is nov. fro m Sag-hal in . 5.
SHIKAMA, T. : . On t he Genus Pa1'(}"steg9clon. 17.
Pathologic Examples of Fossil Deer B on e and Antler from t he Fissure
Deposits of Kuzuu. 28.
-(184) -SHIKAMA, T.: ShOTt Notes on the Exc ~l\"ation of the Ossiferous Fi ssures andCaves in Kuzuif dUl'ing Years ]031 to 1936. 36.
TOKUNAGA, S. and TAKA!, F.: On a Fossil E lephant, Palaeolo.'l:oclon aom-o?'i ens'is, from Shichin ohe, Kamikita-g nn Aomori Prefecture, Japan. 10.
A Ne\v Roe-deer, Capreolus (Cap?'eoUna ) maya.i , n. subgen. and n. sp., fromthe Inland Sea of J apan . 19.
Odontoma in a Fossil Elephant from the Inland Sea of Japan. 39.

PALAEOBOTANY
ENDO, S.: A Pleistocene Flora of J a pan as an Indicator of Climatic Condition.
3.

ISHIJIMA, W.: On th e Classification and Phylogenetic Rel ation of Genera of
the Molobesiae. 24.
OISHI, S.: A Note on Engelhcwclt'ia Genus, and its Occllrrence in the Palaeogeneof K orea. 6.
SHIMAKURA, M.: Pl'eliminm'y Report on Some Cretaceous Plants fromKarahuto. 23.
- - : A · P etrified "'" ood dredged from th e Bottom off t h e Coast of To bisima,
Y amagata-ken. 40.
Jurassic E rect Stumps un earthed at the Court of th e 77th Regiment of
H eizyo, Korea. 47.

GENERAL PALAEONTOLOGYMAKIYAMA, J.: Discllssion of Type. 31.

-(185) -INDEX OF FOSSIL
Note: E very reference is to tbe number of article; wOI'ds in italics are nam esof genera and species ; words in heavy type, n am es of new families, genera andspecies.
Clat7u'odictyon ves·icuZosum 50.
A
Clavat~t la consimilis 20.
Clav ulina tosctens'is 25.
~'1ci la (Acila) aff gettysbu?'g ensis 45.
(l'?'uncacila) 1,nwot1a;i 41.
yabei ctl c'i enS'is 25.
Cohwnna?'ia alveolata 4S.
Agn ost·us ho·i fonnis 37.
inte?'venta 4S.
Anada?'a satowi m-n~naens'is 21.
minima 4S.
Anc'ist?'o lepis 1JettZep'is 4l.
halysito·i des 4S.
Anomoca?'ella maj~ts 37.
minus 37.
l; a r vit ~tba 4S.
p lctnum 37.
C01"eoccwis eishtwwns'i s 35.
su.bcostatum 37.
Cmssatelz.ites fov eolMus IS.
(?) s'Ltbqua 'imta. 37.
C?'yptomeriopsis ant-i q~t a 23.
.A n t·i planes p er OM'sa cont?'a?'ia 2l.
Cuspida?'icL (Cardiom 'fa ) m,ctl .iynm,ai..Jsta rte bO?'ealis 2l.
43 .
hakodatensis 21.
Cy clophorus hM'k lotsi 3S.

B

D

Baltoceratidae 4.
Barnea dilatata 22.
Biltium yolcoyamu'i 21.
Bmchyphyllum vulga?'e 23 .
sp. 23.

c
Calapoecia canadens·is 4S.
- - -anticostiensis 4S.
Camerina sp . 13.
Cancella?'ia (11£ erica) lat-icosta 20.
Cap'l'"eol'ina, 19
Cap r eo Zus (Cap~"e oHnct) 'Inaya;i 19.
CassiduZ·ina 34 .
Cerithi'lm (Pro clava) pfefferi 20.
Cermls (D eperetia) pmenipponicllS
2S.
Ch ~tangia f?' equens 37.
Cladophlebis frigida 23.
Clctthroclicty on salai?··i cum 50.

Desmost l~ts 'In'i1"'ctb'iZ'is 5 .
Diala lJictct 20 .
Diodom cru ciferct 49 .
elaborata 49 .
f~tnicu la .'a 49.
humilis 49.
mus 49.
sieboldii 49.
S'MP1'f'·1.1M't'icen 49.
t anne?'i 49.
ticaonica 49.
yolcoyomtwi 49.
l co s'ibens'is 49.
D01'ypyge r-ichthofeni 37.

E
ElphicUum e;~oense 44.
Eng ellwrdtia l co'ren1'lJicct 6.
E pistoma r·ia yct bei 25.
Ep'i t oni'~m ctcuminatwrn 22.

- - (186)-

*
Ep·itoni~tm(Lineoscala?)

yokoya-mwi 20 _E~th a d1'a

bmndt·i·i val'. 38.
quaesita 38.

F
Ficoxylon (Mtgu stilJU1'enchyrnato-ill
Me rcenar·i a y okoy amai 21M e1'etrix m eretr ix 22
Me tagraulos nammt 37.
M ic?'oporina articu lata 11 .
M ic1'o po1"ina art-icu lata notoen-s'iS II.
M ya c~tne iform is 41.
Myse ZZa paula 1.

s'WIn 40 .

N

Flin tina cZep1'essCt .25.
japm1Jicct 25.
nmntwwi 25.

NagntoelZct l coblIlfJCtsh 'i'i 9.

G
Gaud1'yina (Siph ogaud1"yina ) ma,tusirnwi 53 .

Geinitz·ia sp . 23.
Glomospi1'a sp. J 3.
G 1·ajJh~tlar·ia (?) ya1ltctlcawwi 52.

- - orient·i s 9.
N assew i'll S (N-iotha) g emmulatus 1 .
N eptunect vino sa 41 .
N-ilssoni u'f sp . 23.
N-ipp ono phyll~tm sp, 23.
N onion boveanum 5.
Nucu la (N ucula ) niponica 21.
.Ny ct op 01·a (?) p ar vo t ab ~£ la ta 48 .

oH
H el·i ol-ites in trica t~ts lamellosa 48.
pa1·v·i st ella 48

Ogygitoides yabei 46 .

p

I
I nou ye lla typet 37:

L
Li1~g~tl au nguis 22.

I .JiopcweZZct waZcotti 37.

L iopetr·i a lat elhnbatum 37.

M
Macoma (Psa mmacoma) awajiensis
20.
Ma ctra (JJ!Iactdnulct) clolabmta 1.
Jjlanchu1·ocer as 4.
--

muZo'i 4 .

-w o l ~tng e ns e-

4.

Manchuroceratidae 4.
Megalophthalmus m egetlurus 37.
Melobesia e 24.
M elong ena sazana1n'i 43.

P etlaeo lox oclon aom o1··i ensis 10.
- - namaclicus 39.
Paludinella? If.'l.tz 'U'Uensi s 38 .
P anclo1'a '(K enn erlia) p u lchella 21.
Pam stego clon 17.
P ect en naganumanus 51.
P haeclusa sp. 38.
Ph ylloclacloxylon heiz y oense 47.
Piceophy ll,ltm sp . 23 .
P lasmolJ om lct'mbi 48.
P lasmop oreZZa conve x ot etbu lata 48.
- - - - v esiculosa 48.
- - sp.48
Plicif usus yanami·i 41.
P olydesmia canaliwluta 42.
Pro chuan g·ia quad1'ic ep s 37. ·P rohelioli t es d~t b ius 48.
P ropora cf. affini s 50 .
bacilli/em 48.

-(1137)-

;;J IT

Propom confe ~· ta 48.
cf. go lelfussi 48.
- - tubttlata 48.
- - sp .48.
Protocycloceratidae 4.
Psettelagnostus chinells-is 37.
Pseudo'n on-ion jalpon'icwn 15.

Pty ch0 1J ((.r ia tetling e ~~8is 37.

Q
Quinque locuz.ina conto ~·ta st'l"'iHtct 25.
- -. yabei 25.

Rl'ac hY~'hynchtts venttst ellus 2l.
T echnopho7"tts otrJ,viens'is 16 .
l ' emnot1'e1na 1"'!tbntm 8
l'd tonalia, (Ocineb 1'e llus) ad1.tnca 2l.
T 1"o ecZssonel1,(f, en 'oce1'oieles 4.
Troedssonellidae 4.
l '1'01Jh on (B01'eo tr OlJhon?) ber -ingi 41.
l'ubipO?"a, clwm-issonis 32.
fimb "iatet 32.
h emp1'ichi 32.
musica 32:__ forma sttlcctta 32.

pur purea 32.
ntb eo la 32.
sY~'ing a 32 .
l 'twritella (H attstat01') sa'/.cdm,wwi

Raeta 'magnifiC(!o 22.
Rem,a ct1"cllJitmnpm'cwi(J, 30 .
Ro t aria gaima9'di 7.
Rotetliatina gl,obosa 33..

43.

v

S
Swi.'1ncwl lJia, dcwnes'i 37.
Sc1lfizopecten p1'osseri 16.
Sea1·les·i a S'i1nosens'is l.

Venus (Ch-i one) mic ~'a 20.
Venus (C hione) Y-'iizul.ai 45.
Volse la han leyi 22 .

Serripes fujin ensis 2.
groenlandicus 2.
lap erousii 2.
notabilis 2.
pau,p er cu rus 2.

Wolungoceratidae 4.

wyyol.oyail11,wi 2: 'sp.2.
Siphogener-ina raphana 25.
Solemya t okunagai 41. .
Strobaites sp. 23.
S t1'omb us (CanM··iu;"') succinct us 20 .

Yoldia notabilis 22 .
- - (Cnest1'ium) k eppelianet
notctbilis 21.
(Yoldia) to7cunagai 45_z
Zozia a,bb~' e1, -iata val'. 20.

- ( 188) -•

13 -It"'-b-±~~~~~·!c.t
BiHI] 10 ~F-- 9iffl] 12 i-p.

. Trans actions and Proceedingsof thePalaeontological Society of Japan
No. I - No. 9

1935-1937

Palaeontol ogical Society of Japan•.

(The heading in Japanese comm emorates the handwritin g ofProf. M.

YOKOHAM A,

father of Japan ese Palaeontology, who wasProfessor of Stratigraphy and Palaeo Dtology' at the G ological
Institute, Imperial University of Tokyo.)..

CONTENTS
NUMBER 1
Transactions
ArticlePage Plate

1. Tuneteru OINOMIKADO:

Some M olluscan R emain s
f rom the Plei sto cene Deposits of the Kw an lo Region.
(P ublished September 20, 1935) . ........ . . .. ....... . .
/Md :lIUI1!.1J"l'Ml'dJt:GG C') 2·3 C')~j:1H!:1iJJJ~1J (.fiii~) (9 fl 20 El ~jBO·· ..
.. .. . . .. .. .. .. .. .. .. .. .. .. .. .... . ............ ~". :tJc 1llijJ I"'H;m Irq[

2. Yanosuke OTUKA: Sen'ipes in J apan. (Published
Septemb3r 20) . ... . . . .... . ..... . ......... . . . ... . ... .
El;;FGG Se1'ripes Giii~) (9 J.I 20 EI 1il~) " .... .. ·:k . !If( ~r:R z JJ}J

1-4

1

4
5-8
8

J- 2

3. Seid6 ENDO: A Plei stocen e Flora of J pan as an
Ind:ca tor of Climatic Cond: tion. (PubLshed Octoter 20).... , .. . ..... " . .. ...... , ... .. .. . ..... , " . . . . .. . . .. .
~\\~)I;l':Vil:fi\l~~ e L L C') El ;;j;:']!!fkl!t:M~lr(' (fiii~)

9-24(10 fl 2U El ~l~wi( ilii:

24-25 .

Restudy on Man clm roc er aswith a Brief Note on the Classification of Eudocel'oids.
(Published November 20) ..... ... ........... . ... " .. ..

26-41:/1- OL 0 t '7 ?'. C')flt/iff Yi: C :r. :/ ."'1:: 0 of ." C')7)-!ij(f'CH'! II' L (:fiii~)(1J J.I 20 EI1il~) ...
'/j,~

41- 42~). ....... .... .... ... . . , ...... ....... .... i!li

4. Teiichi KOBAYASHI:

*

"7

0

..

.

. . . . . . . . . . . . . . . .

..

-5 . ~*$lRrtL1lli Desmostylus.; D. mirab'ilis nov. (12 Yl 20 8 M:3!O... .... ...... . .. . ......... . .. .. ............. ~ ffiP543-45

Takumi NAGAO: Desmostylus m'imbilis nov. from Saghnlin(Resume). (Published December 20) ..... .... .......... ...

Proceedings .... .. . . . . .. .... .. ... .. .

45
46-49

·NUMBER 2
Transactions
6. Sabura OISHI:A Note on E n g elha1'dtia Genu s, andits Occurrence in the Pa' aeogene of Korea. (Published
Januar y 20, 1936) .
0

••

•

•••••

,

"

••••

"

J1iJlfi!.*i!.1~:==,*cKi-GG1t;o 7 :; ,.: V T ~ Giii~) (l

.

'

•

•

•

•

•••

,

••

•

•

•

]-4

fl 20 El1il!i&)· · ··;0 :==. Nil

4

7. Ichira HAY ASAKA: A Twinned or Doul:le Foss il
Shell of Rotalia. (Po blished January 20) .. .... : . . .. '.
1t;c{5 Rota/'ict C') ~ ±:{jj'?;;j;:.' Ot;lj~)(1 J.I 20 J.l1il3!O· .1f- #i ])1\

5-7
7...... ........... ... ........................ *

3-4

2

8. Syozo NISIY AMA:

On the Oqcurrence of l'emnot?'em a 1'ub?'~im in the Pleist"ocene of TurlJmi, Kwanto
R egi on . (P~b' i s hed February 20) . . .... : . .... . ... . .. .
iJilll ~J IB\\l\li:fl, JiI, C') :iliJifr/lifK T emnotl'ema ?·l.Ibrum C') iltr IJ\ ( ji'iii~ ) (2 )-~20 EI 11&~)""" ""' "'' ' '''''''' : '' ''' '' '''' 1m

8-13

11 _

14

9. M. L. ' THOMPSON: Nagatoella, ·A New GerlUs of
Permian F u su ' inids. (Published March 20) . .. . .... . .
.-=:&HUJiMi;i,tJifr /1% Nagciloella Ijil':i~) (3 n 20 EI11&~ ) ... .

15-22

UJ

.......... . .................... ··M. L. Tb o nJpson · /H*~ · %;:l

Proceedings .......... . .... . : ...... .

2

23
23-24 .

NUMBER 3
Transactions
10. Shigeyasu TOKUNAGA and Fuyuji TAKAI: On
A Fossil E lephant, Palaeoloxoclon aomol'·iensis . fr orn
Shichinohe, K amikita-gun, A.omOli Pl'efecture, Japan .
(Published April 20, 1936) . . .... ........... . ... . .. . .
Polaeoloxoclon cw mwiensi$ K ff,.t v' L GiI:i~) ( 4 fJ 20 El wHO··
11.

25-28

.. .. .. . . " ... . .. .. .. . . " . . . .. . ...... " .. . · ~,t(jk]!l)jJl: ·,®j ;fl:~ =28-29

lM! l=1f!fi';f!,U ][icI'oporinc! (tj·ticulatc! (FABRICIUS) I:.Jltt-C ( 4 Jl 20
B~HO . : .. . . . . .. .. : .. : .. . ............ . . . . . ;t.oc
~
IYj ~

30-37

Katuhiko SAKAKURA: On ]ficl'opol"'i na c!1"ticulata (FABRICIUS) a Cbilostomatous Bryozoa (Resume ).
(PublisbedApril 20) . .. . . .. ... . .. . . . ..... . .... .. ......... . .. . . . ... . .. .

37-38

12. Sitihei NOMURA and Koto:t:a HAT AI: A Note oft he F ossil Marine Fauna hom Okinawa-Zima, Ryftkyil
Group. (P u blished May 20) . .. . . . : .... ....... . .. . .. "l)"ftJJtWHiJilj1;\lill!il; C') 1t:?5i~l?l7>1" - rKliitv,L (1i'iii~) (5 !i 20 EI 11&~) . . ... . . . . . .. . . ....... ......... .. ... .. . lJlH;j-t 2f- • ~III;1f/Ht_ 39-41

13. Haruyosi HUZIMOTO and Otokiti NAGASIMA : A
New Fossil-Locality of Eocene F oramin;fera in the
Upstream of Taroko-ky6, Taiwan. (Published May 20) · .
~im*:ff;·rm~J:iJlc Klj~H" 0 frilJifr·I!t1t:?5 17.)JifriltrfU! (:fil:i~) (5 fJ 20 EI
11&~) . .... . .. .. .. . .. . .. . . .. , ....... . .... ·7t},Pl;:li1~.\:j • ~ ,Iib z:. Ef

43-45

14. Ting Ying H. MA : On' the Devonian Equator L ocatedby the Growt h Rate of Tetracorals. · (Publ ished May20) . . . . ...... . . .. .. . ....... . ... . ... . . . .... . .. . .. . . .
J1!;1~H'I}JJlliYJl7.)Jll1;·'&;J<l J: ~ :Jfli5t ~ tt-t-.: 0 11E.~'Ntll7.)jffim Gi~~) (5 J1 20
EI wi~) " ..... ...... ......................... !!;
~
~t

46-48

15. Kiyosi ASANO: Ps e~!clo non-ion, a New Genus of Foraminifera found in Muraoka-mura, Kamakura-gori, Kana-

3-4

5

42

6

45

49

7-8

3

gawa P .·efectul'e.

(Published :May 20)... .. .. ...

50- 51;f-fRJiJ< 1 Ji'frIJ6 P~euclononion (ji'ili~) ( 5 y] 20 IJ ~~) .. '...... .. ................. ...... .......... .... . 11i!

ill]'

ii!f

16 . Teiichi KOBAYASHI: The Worl d-Wide Dstr:butionof the Ribe irioicl in th e Ordovician Period. ( Publishe ~l:May 20) · ... " . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V''' -1 V 1"ifJ'i <7.J Jt!,~~J *,cK:Jkl1 Q -j)tJ'~Ii''1 7};fIlK 11,t", L (ji'ili~) ( 5 J'l
20 EI ~~) " "" """ "....... .. ....... " ,J' i* .J!il. --51

52- 6161

NUMBER 4
Transactions
17. P ctms; egodon JHlH=-%t\" -C ( 7 Jl 20 B ~3'O •. .. J,'J!. r,n n~ '?':
Tokio SHIKAMA : On the Genus P amsteflodon (Resume).
(Publishad J uly 20, 1936) .. .... .................. . . .... ....

62- 6969

18. -1' !7" '7 "" :/ * j l Cmssatellite.~ j oveolatus (Sow ) O)j{XO);ji!IHj!tf;:%t-C (7 Jl 20 NMO. . . . .. . .... . .... -.... . . . . . fj-;f~;:.t JJ)]

Keinosuke TAN: On the Shell Struct ure of Cms.satelUtes
joveo lcttus (Sow.) (Resume) (Published Aug ust 20) ... .. . ....
19. Shigeyasu TOKUNAGA and Fuyuji T AKAI: A
New Roe-d . el', Cctpl' eo lus (Ca pl'eol-ina) mctya-i, n. subgen .
and n . sp. from the Inland Sea of Japan _ (Published
August 20) . . .. ... .. ... . . . ... . . .. . . . .. . .... . . . .. .. .
Capl'eolus (Capl'eolirw ) mayai K ;?X" ' L (ji'ili~ ) (8 J'l 20 EI ~~). ............ . . . .... .. . . ... . " ..... . " . .. '1!!\7k:ill:m • ;Wi;!j:-3 =:20 . K6iti SUZUKI and Kenichi ICHIMURA: :Molluscan
Fossils fl'om the Ra'sed Beach Deposit of T akai, Tateyama-Hozyo-mati, Tiba Prefecture. (Published Sep tember 20) . ..... . . . . . . . ... . ... . . . . . .. ... - .. - . ... . . . . . . .
~f3!€1\b¥.1!l'f ilJ~I:~ IIlT 'MFEli iJP ;fi'(j)tfl.1t76 (ji'i:i~) (9 J'l 20 EI ~HO ' .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .It,t*:H '- . rlrtH't21. Yanosuke OTUKA: Pliocene :Mollusca from :Manganzl
in Kotomo-mu a , Akita Pref., Japan . (Published Sep tember 20) ·· ·· ·· ·· · · ···· ··· ·· ···· ··· ·. · .'.. . . . .... . . .
fj(ml\b¥.Jj ,;tc:tt;iJ\\f~o;'j'EIit:Cl fl.1t 76 (ji'ili~) (9 J'l 20EI~~) """".. .. ... , . . . . ... . ... . . . .. . . . . . . ... . . . .. . . . ... 7" W1 IIR ;:.t JJ)]

70- 73

74

75-78

!(}

78- 7980- 92 11-12
93-95

96-105 13-14
105-106

NUMBER 5
Transactions
22. Sitihei NOMURA and Kotora HAT AI: The Geolog ic
Significance of the Re cent Mollus a from the Vicinityof I sinomaki, Rikuzen. (Published October 20, 1936) . .

109-11415 '4IMnltr;r:J{{fI~jJi[!Jt~tJtI!Ji")tl!!.'ItJfWJ;tgf,-f (~~) (10 }J 20

EI !£~) . •" " " " " . . . . " .. " .•. . .. " .. " " . . . . " .. !JIJ·;ff·t:2JS. · ~1Il*/HIE

23 . ~*~I=1¥ij;[I.:fiili!JmO) ·2·3 (~¥R) (11 Jj 20 B-liiZ~U·"·" · "·"........... ...... .. .... ...... .. ............. ,lib ~ B .::'.. f.!11
Misaburo SHIMAKURA: Preliminary Report on Some
Cl'etaceous Plants from Karahuto (Resume). (Published
November 20 )· · ··· ··· ···· · ·· · ····· · ·········· · ···· · ·· · ·····
24 . Wataru ISHIJIMA: On the Classification and P hyl ogenetic R elation of Genera of the Melobesiae. (PubL shed Decembe :' 20) .. . . . .. . .... . . ,.. .. ... . . . ... . . ..
Melobesiae C'):5-}-?fJi.!: %J~C') *;f.tI#J% Cflm~) (12 11 20 EI !iJt~) ..
............ .. .................. .. ........ .... ;r:J,w,
til>
25. Kiyosi ASANO: New Species of Foraminifera from
Aki-gun, Tosa Provi nce, J apan . (Published De: ember20) . . . ... . ... . . ... .. . . .... .. ... .. .. .... ............
±1!i:~'k~;mI:f.ffL~ v ~'tlIl Olm~) (12 Jl 20 EI!£~ ) . .... .... .

.. .. .. .. .. .. .. .... .. .. .. .. '" .............. .. i'li! ill]'
Proceedings .. . ... ... ..... . . .

Tilt

114
115- 12016

120-121122- 125124] 26-129 17-18
130
101-108

NUMBER 6
Transactions
26 . Tsuneteru OINOMIKADO : Mollu scan Fossils fromt he P leistocene Deposit of Sisinai in T6betu-mura,Isikari-gun, Hokkaid6. (Pu blished J an uary 20,1937) · .
~ t mfl)l;r:JJ;f'll!l~'::i}] IJ;fJMJliTrJgilE1:!~fl~·IJtJl. it;r:J (jlm~) (1 Jl 20 EI !iJt~)" ' . " " . . . . " " " ... . " ... . . . " . . ... . .... . • .. j( W,Kq;l;p r'~ ' :fjf!

1-6
6

27. Kotora HATAI: A Short Note on t he P llndati on of
the Brachiopod Shel l. (Published F clbruary 20) .. ... .
1IliiJi',~Jii\Xv Punctation K)ji,.\: ~ "C GIm~) (2 }J 20 EI !£.3\() ... .

7- 10

DE

10-11

28. Tokio SHIKAMA: Pathologic Examples of Fossil
Deer B one and ' Antl er from t he F issure Deposits of
Kuzuu. (Publ ished February 20) . .. . . . ......... . .. . .

12- 14. •.• . . •..• ... . .. . .. .. ... . . .... . •. . .. ...... . .. . ~ij*

IJ'~&.~W¥:ljt:fi'(!I~ilE1t;r:JJllIv*]{ZZffCjC')1*#Wtl Ulm~) (2 }J 20 EI!£~).... .. ... .. ....... . .... ... .. .. ... .. ...... /fjJ,

~ij

iJ;)'

~

29. Kotora M. HAT AI : B . achiopod Morphology : Stu dies on t he Anterior and L ateral Commissures of Certain Forms and the Cur vat ure of t he Beak, t heir Rel ationship and Morphological "Impor t ance. (PublishedlVIarch 20) . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .. . . .
nli!Ji',n7[fii,.lll}~ : lJlt.OJ 7f§V)Jltr*!111fH~ffIlJt.iS~~lk.ZfPJ~ ~ 1ffi Jlh, JI:(;~v;Hl
1L1#J% ]{zV" 7rgf<ll~\n911l~ji..tK &tv'''CQ) Iilfy\: Cfj'/;j~) (3}J 20 EI!.a~) ...... .. ... .' ........ .. " .... .. .... , ... " "~II
11' I j , f}E

14

17-26

26

1

30. Yaichiro OKADA: A Fossil Frog from Japan . (Pu b·
lished March 20) · . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPj<:Hl!:!i::EG7)1t15 Oilli~) (3 fJ 20 El '~ ~) "" " ·liYd m ~ra - .i.!11
31.

*!J 1 7' 0) rp~Jffi (3 J1 20 13 ~~) ... . .. ... . .. .. .. Nt

il.J.i.!11Jiro MAKIYAMA: Discussion of Type (Resume). (J;'u blish·
ed March 20) .... " . . . ... . . . ... . . . . . . . . . .. . . ......... .

27-29
29

30-32
32

32. Hisakatsu YABE and Toshio SUGIYAMA: Sundry
Notes on Living anti Fossil l 'nbipom. (PublishedMarch 20)· . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ffl.t~':&V:1t15 Tab ip oj"(t K );(tv' -C Cfilli~ ) (3 fJ 20 8 ~~) .. . . "... . " " " . .. . .. " . . " .. " . ... . .... . . . .. ·:7<:f.il,RY,!; • ;f~U-JIii1:Q[133-37

Proceedings .. ..... . ..... . ........ .

15- 1G

2-3

38

NUMBER 7
Transactions
33. Hisakatsu YABE and Kiyosi ASANO: New OCCUl'·ren(e of ROfaliatina in the Plioc . ne of J ava. (Pub.
lished April 20, 1937) . ... . . . .... . ........... . .... . ,3f1- 41

Hotali atil1a G7)~Hl!:fU!. Cfilli~) (4 J] 20 El W1~) .. " . . .. . ...... .

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. :7<:f.jlft3',!; • rli!!lll' illf
34. 13 ::<l(j~ Cassidul-inn, !lIii1frL!lITi:O)7J':tnf::$t~' -C cfJ<~) ( 4 J1 2013~~) .... .. ....................... . .... i5i!!Jlj.
Tilf · ,*1 ~tJE~
Kiyosi ASANO and Masayosi NAKAMURA: On the Dis·

tribution of the J apanese Species of Ca.~s'idnZ.ina (Resume).
(Pub1ished April 20) ........... . . . ... . . ..... . .. . .......
35. Teiichi KOBAYASHI: An OcculTenee of a N ew
Pel miau Phyllorarid in South Chosen. (Published April20) . ........ . .... ...... . ...... . .. . . .... . ...... . .. . .
j:Yi.@*Hl!: ::-.~*c*~ iJ',Z~~J%KJikIt'-C C1illi~

*

-

42-48

49

50-52

( 4 J] 20 EIW1~) "". . ............ . ........... .... .............. " ,J'
36.

41

~

53

EI HBf,u 6 '9=-~~ 11 '9=-~~'i!i'i/llJ$f~:JIiil:m~ (5 J1 20 13 ~~ ) ..

...................... .. ........... .. ..... J1lf. rm 11# x
Tokio SHIKAMA: Short Notes ou the Excavation of theOssiferous Fissures >lnd Cavt's in Kuzui'i during t he Years
1931 to 1936 (Resume). (Publish ei May 20)···· " " . . " . ...
37. Teiichi KOBAYASHI: Restudy on the DAMES' Typesof the Cambrian Tl'ilobites from Liaotung. (PublishedMay 20)· ·· ············· ··· ·········· ·· ······
iliU.ftElU'· - ;< .A. !"<:G7)~jl;)fIJm!*c.=:.~U!?1t 15 PI 1 7·".) j1ff!fF'J\:: C1j'.\j~ )68-69'

70-85

-

85-86

38. K6iti SUZUKI: Some Fossil T enestrial Gastropods
from 'l'uizi, Kuzuu.mati, 'rotigi Prefecture. (Published}\fay 20), · . ... . ... .. ...... . . .......... ... . '.' .... ... . .

89-91(5 )~ 20 B!'iit~) .......... · .................. ';j'

*

54-67

~

()

7

6
;jIjj*l~1;;l;.4:iIlT~f!l!..iili I!'El~Jl.!i!i'i1t~ Gi'ld~) (5 )~ 20 EI ?liHt)· . .. ..
..... ... . . ......... . . . .............. .. . ... ... ·1f,7* "PcT- -39.

Wlpf.'g@~{t;ji~ I::'.4: ct.:~:r-mlH::.J1tt-c (5 .f:I 20 B ~~n

92

....

. . . . , . ..... .. .. .. . . . : .... .. ..... . . . . ... '~7kID:Jllt . jliijj:~~=

93-94

Shigeyasu TOKUNAGA and 'Fuyuji TAKAI: Odontoma
in a. Fossil Elepbant from tbe Inl and Sea of J ap,m (Resume).
(Published May 20) : . . . " .. . .... " .. .... ...... . . . " " .......... .

94-95

Errata· ·············· _... .. . :. ... ...
Proceedings .. ... ... .. .. . . .. . .......

8

97

96

NUMBER 8
Transactions
40. Misahurii SHIMAKURA: A Petrified Wood dredged
fr om the Bottom off the Coast. of 'robisima, Yamagataken. (Published J uly 20, 1937) .... ·· .. · . · . .. .. . . . . . .
11IJf§l~Ji~ ,%irp l7)7i;Jm;71> £,,':I:\kt11t~ (jjj3'iJ2:) (7~ 20 El1£~) "". ..... . .. : ... ... . . .. " ... . " ......... . . •.. . . . ,ifI; ~ B .=. Ell

41. Kinji KANEHARA: Pliocene Shells from the Teshio
Oil Field, Hokkaido. (Publ'shecl July 20) · . . . . . . . . . . .
7dff.ilIbEFl.iili!JiMmtJJJl.1t~ ( 1il~~)(7 YJ 20 EI 1£~ ) ' sE ' Ilff

YiJ

':::'

42. Curt TEICHERT: Polycles mia CC!lu!liculatc! LORENZ,
an Ordovician Actinoceroid . Cephalopod. .(Published .
July 2 11 ). • • • • • • • • • • • . • • • • • • • . • • • • • • • • • • • • • • . • • • • • • • •98- 1029103

164:"10910

109110- 11 3

Ji'!, 111i,J*tl7:7 7" /.~ 0 -1 1·- lW(JE!i:'i'i I7) . l 0fl11 Poly,iesmia ccmaliculata
LOREN Z (1jj3~)( 7 J'J ):i0

EI!1it~)....

.. .... .... .

.. .... .. ....... . ............ Curt TEICHERT [1i'i'J~Jj,*!~~ -]43. Kinji KANEHARA: On Some Neogene Shells f rom
Japan. (Part 1.) (Published August 20) · ····· · · · ···· ·*!tIS;m1fi.=.*tlJl.1t~ (~. 1 'i¥.) ( 8 YJ 20 EI !1it~)

sE

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44. Kiyosi ASA,NO: A P liocene Species of Elph-idium
from Japan. (Published August 20) . ......... .. ....
El *jj'l'i!Ji.'i';mii!: Elphiclium 17) 1 ;m~.ill C:fil.lljlf) (8 ~ 20 El !1it~) ..
.. .. ...... ........................ ............ ~

ill)'

lilT

45. Kinji KANEHARA: Neogene Shells .from tb e Etaibets
Oil Field, Hokkaido. (Published August 20) .. .. . ... .

113
114-11811

119120- 12212

123

124-129

13~1::ifiH!'if.!:\ ~ JJI] 1111 ftll7) Jl.1t~ C1i'i'J 1}l!:) (8 )~ 20 EI !1it~ ') . ...... . ... .

" ...... " .. ..... ....... . . " " ... .. . .. . . . .. . " sE

IJif YiJ '=:46. H. Y. MA: Ogygitoides yabei, a New Species of Trilobite from t he T sinan Limestone of S h ntung, China.
(Published September 20)· . . . . .. . . . . . . . . . . . . . . . . . . . . .
1./.J]:iU ilWl¥i ;U-1;IUi* J jj'l'i'='~i~ 17) 1 ;m~1Il Ogygitoicles yab~i C1il.lljlf) (9YJ 20 El !1it~) .... . ...... . . .... . ............. ~
~.
Iii~

129

130-132J32-133

14

7

~I

47. Mis aburo SHIMAKURA : Jurassi c Erect Stump s
un earthed at t he Court of t he 77t h Regiment of H eizy6,
Korea. (Published September 20)· . . .. . : . . . . . . . . . . . . .

134- 136:zp.!1Ji:i!1; 77 JI~M~'ii1' ~ J: ~ !JJtlll: ~ ;/1.- t:: :J = 7 *i2(1) 1t15mJji~ (j~tl~ ) (9}l 20 81ijMO .. .. ...... .... .............. .. .. ,lib if E. .=. fill

] 36

Proceedings , . . . . . ... .. .... . .. , . . . . .

137

NUMBER 9
Transactions
48. Ting Ying H. MA : On t he Ordovician Clima te ofth e Northern Hemisphere dedu ced f rom the Gl'owth
R a t e of Tabulate Cora ls. (P ublish ed Octobe r 20, 1937)*;{tUJIJlJJ)lJ '1) nX :R~~ J: ~ 111, 5t ~ ;/1.-t:: Q ~ !: ~f' ,* Kjk H' Q ~ ~1r3 *cCl)¥\ ~(jii,ilJl') (l 0 }l 20 8 !JJMO " .. .. .. . .. .... .. .. .. ,r:!~~:!it
49. Yanosuke OTUKA : D iodom in Japa n. (P ublishedOct obe r 20) . . . . .. . . . . .... . ... . . . . ..... . ..... . . . . .. .
EI ;<j;;:EI!: ~ 7·"-v 1/ I:: C filtl~ ) 0 0 1-1 20 8 ~~) . . . . *- :!* ~I!l Z. JI)J
50. His akatsu Y ABE and Toshio SUGIYAMA: Got la ndian ClaOwoclictyon f r om Ty 6sen (K orea). (P ublished N ovember 20) . .. ... . . . . . .. . . . . . . . . . .. . . . .....
JliJlElf'EI!: Got landian CI) ClathrocZ·ictyon KYiXv'L Uii,i~) ( 11 )'J 20
El'1iH,o .. .. .. ........ .. .. ... . .. .... .. .. .. :*lljl'R j'l: • ;j'~ 11/fjUII

138- 144

145
146-15315

153

154- ] 57]6157

51. Hisakatsu YA BE and Kotora HAT AI:

On theSt ratig raphical Signifi cance of P ect en nag anuman u s
Y OKOYA MA, and Its Bear ing on th e J apan ese N eogene
g en e. (P ublished N ovembe r 20) · . .. . . . . . . . , . . . . . . . . . .
Pecten naganurnanus YOKOYA~[A CI) JN1ii: lhfdi* c ;!iI; CI) i1'lfl1f GjjE~ )(1 1 }l 20 8 ~ ~) " . . . ... " ..... . . . . . ... . :9clljl:R}'1: • ~1:1i1:J 1: /NjE
52. Hisakats u Y ABE and Toshio SUGIYA MA : On a
G9'c,pht,laim-Like F ossil f rom the P leistocene T okyo
B eels of '.J;okyo . (P ub lished Decembe r 20) . . . . . . . . . . . .
JR]( Eli Graph'u lm'ia ( ?) Cl) 1t15 KJlXv' L CfiM~ ) (J 2 fJ 20 E1!£~ ) ....... .... . .. ...... .. .. ...... .. .. .. ":*lljl:Rj'l: . ;j~ ~IjJ;i!11
53. Kiyosi ASA NO : Pleistocene ]'or ami nif er a from t he
Hiradoko Shell Beds, Not o Peninsula, J ap an . (P ublished D ecember 20) · , . , .. . . .. . . , . . .. . . , .. . . .. . . , . . . . . . .
(12}l 20 E1 ~~) " " ". . . . . . . . . . . . . .•.. .. ...... . . . . .... . .. . . . . . . . ~
!jl)·
t,!f

158-168169

170- 173173174-"180

1i5$~ ~f' ,(h:zp. J;l:;JNCI) 1t 15 ;fnL li !i!Jl Oi'M~ )Proceedings , . . . .. . .. .. , . . , . . . . . . . . .
Systematic Index · . . . . . . . . . . . . . . . . . . .
Index of Fossil· . . .. , . . . . . . . . . . . . . . . .

181
182183- 185
186- 188

17

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Oonstitution of the Palaeontological Societyof Japan.
Article 1. The Society shall be known as the Palaeontolog ical Societ,y of Japan.
It forms a section of the Geological Society of Japan .
Article 2. The object of t,h e Societ.y is the promoti on of palaE'ontology a nd related sciences.
Article 3. This Society t o execute the scheme out lin ed under Arti cle 2. shall holdannu al meetings a.nd discussions.
Article 4. pJ:oceedings of the Society a nd art.icles for publicati on s hall be publish ed t hrough the Journ al of t.he Geological Society of J apan. Separates a nd circulati ons will be sent to m ,-robers of the Palaeontolog ical
Society who a re n ot mem bers of the Geologica] Society of Japan.
Article 5. The a nn ual dues of t h is Societ.y iR two (lollars for t.he foreign m embersof the Society.
Article 6. This Societ.y shall hold the following execut ives. P resident one perSon,
Councillors s ~ vera l persons.
Article 7. The President and Counc illors shall be e lected a nnnally. The President and Councillors shall be e lected from the Society bod y by voteof its members. All e lections shall be ba ll ot.

President

Shintm'o N AKAl'IURA

Councillors 1chiro H AYASAKA

H al'uyos i HUZ IMOTO*

Tsunenaka 1KI

Kinosuke JNOUYE

Nobuyasu KANEHARA

T akeo K A'.ro

Ro kul'o KIMURA

T eiichi KOBAYASHI"

H a nzo MURAKAl'n

T a kum i N AGAO

S hintaro NAKAMURA

Tun et er u OINOMIKADO*

1ch izo OMURA

Yanosuk e OTUKA*

I wa o T ATEIWA

S hi geyasu TOKUNAGA"

Hisukatsu Y ABE

Shinji YAMANE(* Executive committee)

All communications relating t o this JOllrnal shOUld be addressed to the
PALAEONTOLOGICAL SOCIETY OF JAPAN

Geological Institute, Faculty of Science, Imperial University of 'I'okyo, Japan