SYSTEMATIC ACCOUNT 55 



204. Globigerina pachyderma (Ehrenberg) (F 310) (SG 281) (A 464). 

 Eleven stations: 226, 286, 300, 312, 313, 338, 417, 418, 421, 422, 447. 



Very common at St. 421 ; common at Sts. 417 and 447; frequent at Sts. 286, 313, 

 418 and 422; very rare elsewhere, sometimes only a single specimen. Abnormal 

 specimens such as those referred to in SG, p. 120, and A, p. 175, were observed at 

 Sts. 417, 421, 422 and 447. 



Pearcey: 300, 313, 338, 342, 387, 417, 420 "more or less abundantly". 



Genus Pullenia, Parker and Jones, 1862 



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

 Four stations: 286, 417, 421, 447. 



Common at Sts. 421 and 447, where both the type and a compressed variety occur 

 together. The spherical type is unusually large at St. 447; the compressed form is 

 always smaller than the type. 



Pearcey: 342, 420, 421, 447 "sparingly". 



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

 Three stations: 417, 421, 447. 



Rare at all stations. At Sts. 417 and 421 all the specimens were of the compressed 

 quinqiieloba type, but the number of chambers varied from five to seven. At St. 447 

 both this form and the typical inflated P. subcarinata occur together, and with inter- 

 mediate variations. 



Not recorded by Pearcey within the convergence under either specific name. 



Genus Sphaeroidina, d'Orbigny, 1826 



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

 One station: 417. 



One typical specimen of average size. This is a great southward extension of the dis- 

 tribution of the species by 7° latitude, and is evidence of the penetration of warm water 

 into the extreme south of the Weddell Sea. 



Family ROTALIIDAE 



Subfamily ROTALIINAE 



Genus Discorbis, Lamarck, 1804 



208. Discorbis globularis (d'Orbigny) (F 331) (SG 294) (A 474). 

 One station : 406. 



A single typical specimen from 1131 fathoms, off Coats Land. 



Genus Cibicides, Montfort, 1808 



209. Cibicides refulgens, Montfort (F 355) (SG 303) (A 487). 

 One station: 417. 



