Pareuchromadorafragilis(ALLGEN)

Fig. 140 a, b

Spilophora fragilisALLGEN 1929, p. 39, pl. IV, fig. 12 a-b
Localities and material.
- Falkland
Islands, St.40:
12; St. 41
St. 46: 19; St. 53 : l$?; South Georgia, St. 22d: I$?; St. 24 l$?

1 juv.;

St. 42a : 19;

Dimensions :L = l,258mm.,
a = 27,351, ,C3= 8,28,
y = 6,69
The few specimens recorded from the Falklands and South Georgia, are in their generalshape as well as in the structure of their lateral organs so similar to Spilophora fragilis,
described by the present author (1929) from the West Coast of Sweden, that I regard themwith no doubt as identicalwith that northern species.
Later on, SCHUURMANS STEKHOVEN (1935) has established, for this and another species
from the Belgian Coast, a new genus, Pareuchromadora, easily recognized in its characteristic
lateral organs, consisting of transverse, large, open slings close to the front end. WIESER
refers this species to the genus Actinonema COBB and even to Actinonema longicauda (STEINER
1918).
Geographicaldistribution.
Flatbonden,on shell-ground

Sweden : West Coast, vicinity(ALLGEN 1929).

140
Fig. 140. Pareuchromadora fragilisof the Zool. Stat. Kristineberg,b(ALLGEN) a. Anterior

end, x 450, b. Tail,x 270

St. 22a. South Georgia. Cumberland, May-Bay. Catching over stony bottom among algae in and under thetide zone. 5. 5. 1902.
Number of species found: 11; Number of specimens found 63.
St. 22b. South Georgia. Grytviken. 22. 5. 1902 and 20 m. depth. 11. 6. 1902.
Number of species found: 16; Number of specimens found: 77.
St. 22c. South Georgia. Grytviken, from old kelp-rhizoids. 23. 5. 1902.
Number of species found: 45 ; Number of specimens found: 350.
St. 22d. South Georgia. Grytviken. Sample of fine washings from old kelp. 22. 5. 1902.
Number of species found : 22 ; Number of specimens found: 200.
St. 23. South Georgia. Off the mouth of the Moraine-Bay.
54° 23’ S. - 36° 26’ W. Grey clay with gravel andstones. 64-74 m. Bottom temp. + 1,65 C. 16. 5. 1902.
Number of species found: 32 ; Number of specimens found: 147.
St. 23a. South Georgia. Moraine-Fiord.
148 m. Bottom temp. - 0,35 C. 15. 2. 1902.
Number of species found: 14; Number of specimens found: 51.
St. 23b. South Georgia. Moraine-Fiord.
14 m.
Number of species found: 12 ; Number of specimens found: 49.
St. 24. South Georgia. Off the “Kochtopf’‘-Bay.
54° 22’ S. - 36° 37’ W. Grey clay. 95 m. 20. 5. 1902.
Number of species found: 23; Number of specimens found: 120.
St. 25. South Georgia. Off the “Kochtopf“-Bay54° 22’ S. - 36° 27’ W. Grey clay with some algae. 2452 m. 21. 5. 1902.
Number of species found: 29; Number of specimens found: 83.
St. 26. South Georgia. Off the “Kochtopf’‘-Bay.
54° 22’ S. - 36° 27’ W. Stony bottom with algae off theMacrocystis-Formation.
30 m. 24. 5. 1902.
Number of species found: 11; Number of specimens found : 29.
St. 28. South Georgia. Mouth of the “Kochtopf’‘-Bay.
54° 22’ S. - 36° 28’ W. Sand and algae. 12-15 m.
24. 5. 1902.
Number of species found: 58; Number of specimens found: 338.
St. 30. South Georgia. The Moraine-Fiord.
54° 24’ S. - 36° 26’ W. Clay with sparse stones. 125 m. Bottom
temp. - 0,25 C. 26. 5. 1902.
Number of species found: 23; Number of specimens found: 247.
St. 33. South Georgia, in the “Kochtopf“-Bay.
54° 22’ S. - 36° 28’ W. Clay and algae. 22 m. 30. 5. 1902.
Number of species found: 23; Number of specimens found: 106.
St. 34. South Georgia. Off the mouth of the Cumberland-Bay.
54° 11’ S. -- 36° 18’ W. Grey clay with afew stones. 250-310 m. Bottom temp. + 1,45 C. 5. 6. 1902.
Number of species found: 38; Number of specimens found: 224.
St. 39. Falkland Islands. Port William. 51° 40’ S. - 57° 41’ W. Sand and small stones with algae. 40 m. 4.
7. 1902.
Number of species found: 11; Number of specimens found: 12.
St. 40. Falkland Islands. Berkeley Sound. 51° 33’ S. - 58° 0’ W. Gravel and shells with algae. 16 m. Bottom
temp. - 2,75 C. 19. 7. 1902.
Number of species found : 54 ; Number of specimens found : 291.
St. 41. Falkland Islands. Port Louis, shallow water. 51° 33’ S. - 58° 9’ W.
Number of species found: 51; Number of specimens found: 310.
St. 42. Falkland Islands. Port Louis. 51° 33’ S. - 58° 9’ W. Ooze and shells. 8 m. 26. 7. 1902.
Number of species found: 55; Number of specimens found: 372.
St. 42a. Falkland Islands. Port Louis: Greenpatch. Material shaked up from algae and kelp-rhizoids, cast up
on shore by storm. 30. 7. 1902.
Number of species found: 54; Number of specimens found: 150.
St. 46. Falkland Islands. Port Louis. Carenage Creek. 51° 32’ S. - 58° 7’ W. Sandy bottom with quantitiesof Codium. 1 m. 9. 8. 1902.
Number of species found: 28; Number of specimens found: 103.
St. 47. Falkland Islands. Port Louis. Mouth of the Carenage Creek. 51° 32’ S. - 58° 7’ W. Shells and stones.
34 m. 9. 8. 1902.
Number of species found: 63; Number of specimens found 247.

St. 49.
St. 51.
St. 53.
St. 54.
St. 55.

St. 56.

St. 57.

St. 58.

St. 59.

St. 62.
St. 64.

St. 67.

FalklandIslands. Berkeley
Sound. 51° 35’ S. - 57° 56’ W. Shells and stones. 25-30
m. 10. 8. 1902.
Numberof species found: 27; Numberof specimens
found: 58.
FalklandIslands. Port William.
51° 40’s.
- 57° 42’ W. Sand. 22 m. 3. 9. 1902.
Numberof species: 45; Numberof specimens found: 245.
FalklandIslands. Port William.
51’ 40’ S. - 57° 47’ W. Sand and gravel.
12 m. 3. 9. 1902.
Numberof species found: 65; Numberof specimens
found: 372.
FalklandIslands. Stanley Harbour.
51° 42’ S. - 57° 50’ W. Ooze with shells. 10 m. 3. 9. 1902.
Numberof species found: 2 ; Numberof specimens
found : 7.
FalklandIslands.
Port Albemarle.
52° 11’ S. - 60° 26’ W. Sandy bottom
with algae. 40 m. 8. 9.
1902.
Numberof species found:33; Numberof specimens
found:113.
FalklandIslands.
Port Albemarle.
Albemarle
Harbour.
52° 9’ S. - 60° 33’ W. Sandy bottom
withalgae. 15 m. 8. 9. 1902.
Numberof species found:
15 ; Numberof specimens
found : 40.
FalklandIslands.
Port Albemarle.
Albemarle
Harbour.
52° 8’ S. - 60° 33’ W. Sand. 18-30m.
11. 9. 1902.
Numberof species found: 21; Numberof specimens
found: 40.
FalklandIslands.
S. W. West Falkland.
52° 29’ S. 60° 36’ W. Sand and gravel.
197 m. 11. 9.
1902.
Numberof species found: 23; Numberof specimens
found: 93.
FalklandIslands.
S. W. West Falkland.
On the Burdwood-Bank.
53° 45’ S. 61° 10’ W.
Crushed shells with stones 137-150
m. 12. 9. 1902.
Numberof species found: 20; Numberof specimens
found:
70.
Fuegian Archipelago.
Beagle-Channel.
54° 53’ S. - 67° 56’ W. Sand-mixed
clay. 140 m. 16. 9. 1902.
Numberof species found : 12 ; Numberof specimens
found: 63.
FuegianArchipelago.
North side of the Beagle Channel
between Ushuaia
and Lapataia.
54° 52’ S.
- 68° 25’ W. Shells and algae. 35 m. 13. 10. 1902.
Numberof species found:33; Numberof specimens
found:
192.
Fuegian Archipelago.
Ushuaia.
54° 49’ S. - 68° 18’ W. Ooze. 6 m. 16. 10. 1902.
Numberof species found:9; Numberof specimens
found: 42.