GLOBIGERINIDAE 179 



Hastigerina murrayi, Wyville Thomson, 1876, in M. 1876, PRC, p. 534, pis. xxii, xxiii. 

 Hastigerina pelagica, Brady, 1879, etc., RRC, 1879, p. 291 ; 1884, FC, p. 613, pi. Ixxxiii, figs. 1-8. 

 Hastigerina pelagica, Cushman, 1918, etc., FAO, 1924, p. 33, pi. vi, figs. 1-8. 



One station: 161. 



A single fine specimen which had evidently sunk recently from the surface water, as 

 it shows no sign of erosion. St. 161 is in the deep water (3459 m.) of the Scotia Sea in 

 lat. 57° 21' 20" S, which is probably the most southerly record for the species. 



Genus Pullenia, Parker and Jones, 1862 



467. Pullenia sphaeroides (d'Orbigny) (F 315) (SG 286). 



Forty-five stations: 170, 171, 175, 177, 181, 187, 192, 196, 202, 203, 360, 363, 369, 383-6; 

 62° 57' S, 60° 20' 30" W; 64° 56' S, 64° 43' W; Port Lockroy ; WS 204, 205, 383, 385, 393, 403, 



468, 469, 482, 483, 485-7, 494A, 494B, 496, 497, 505, 507 A, 507B, 509, 511, 512, 515, 517. 



Frequent at Sts. 177, 384, 385, WS 403, 483, 486, the depths ranging between 787 

 and 3721 m. It was rare or very rare at the remaining stations, which are of varying 

 depths down to 4773 m. at St. 386, where the few specimens were very large and of the 

 typical spherical form. As usual varying degrees of lateral compression were observable, 

 often at the same station; this does not appear to be influenced by depth, although the 

 spherical form reaches its finest development at the deepest stations 383, 384, 385, 386, 

 WS 204, 403, 468, at none of which was the compressed form noticed. 



468. Pullenia subcarinata (d'Orbigny) (F 316) (SG 287). 



Thirty-seven stations: 167, 170, 175, 177, 180-2, 186, 187, 190, 194-6, 198, 200, 363, 366, 369, 

 383-6 ; 64° 56' S, 64° 43' W; WS 205, 382, 403, 468, 469, 482, 488, 490, 493, 494A, 499, 505, 509, 513. 



Generally distributed and at all depths; common at Sts. 170 and 175 which are in 

 moderate depths, 200-342 m., and at WS 403 in 3721 m.; frequent at Sts. 177, 180, 18 r, 

 363 and 366, the depths of which range between 160 and 1080 m.; rare or very rare at 

 the remaining stations. There are very few records in the Bellingshausen Sea. Typical 

 P. subcarmata is the general form everywhere, but there is considerable variation in the 

 inflation of the chambers. Specimens with inflated chambers giving a lobulate periphery 

 were observed at Sts. 170, 180, 383, 384, WS 468 and 469. Other compressed speci- 

 mens answering to P. qiiinqueloba (Reuss) were seen at Sts. 180, 383, 384, 385, WS 205, 

 403 , 468 and 469 ; they were always small as compared with P. subcarinata at the same 

 stations. 



Genus Sphaeroidina, d'Orbigny, 1826 



469. Sphaeroidina bulloides, d'Orbigny (SG 289). 

 Eight stations: i8o, 383, 384-6; WS 468, 469, 472. 



Single specimens at Sts. 180 and WS 472, rare or very rare elsewhere. All the tests 

 are small but quite typical. The record at St. 180 in the Palmer Archipelago (about 

 64° 22' S) is a notable extension of the southern limit of this species, the previous record 

 being the specimen recorded in the South Georgia report from St. WS 522 in 52° 56' S. 

 But there can be no doubt that all the present records are due to the inflow of warm 

 Pacific water through the Drake Strait, as proved by the increasing rarity of specimens, 



23-2 



