S6 DISCOVERY REPORTS 



A single typical specimen. The rarity of the species, usually abundant in Antarctic 

 material, is probably due as much to the nature of the bottom as the depth. 



210. Cibicides lobatulus (Walker and Jacob) (F 356) (SG 304) (A 489). 

 Three stations: 406, 417, 421. 



A single normal specimen at St. 406. At St. 417 the species is rare, but present both 

 in the typical form and in the pauperate variety figured and described from deep water 

 in the Drake Strait (A 489). Very rare and weak at St. 421. 



Pearcey: 342, 447 "sparingly". He also records its variety Cibicides {Truncatulina) 

 temiimargo (Brady) "sparingly" at St. 417. I did not observe this. 



211. Cibicides wuellerstorfi (Schwager) (F 361) (SG 306) (A 492). 

 Two stations: 417, 418. 



Common at St. 417: frequent at St. 418. 

 Pearcey: 300, 417, 420, 421 "sparingly". 



212. Cibicides aknerianus (d'Orbigny) (F 362) (SG 307) (A 493). 

 One station: 417. 



Only a single specimen. 



213. Cibicides pseudoungerianus, Cushman (F 363) (SG 308) (A 494). 

 Three stations: 417, 421, 447. 



Frequent at all stations, but the specimens are small at St. 447. 



Pearcey: 313 "sparingly" under the name Truncatulina ungeriana (d'Orbigny). 



Genus Globorotalia, Cushman, 1927 



214. Globorotalia crassa (d'Orbigny) (F 376) (SG 317) (A 500). 

 One station: 301. 



A single small specimen. 

 Pearcey: 342 "few". 



Genus Eponides, Montfort, 1808 



215. Eponides umbonatus (Reuss) (F 386) (SG 322) (A 502). 

 Five stations: 286, 417, 418, 421, 447. 



Common and large at St. 421 ; frequent at Sts. 417, 418 and 447; very rare at St. 286. 



Wherever the species is at all abundant, both the type of Reuss and the thin-walled 

 form described by Brady as Truncatulina tenera (see F 386) are found together in varying 

 proportions, and with intermediate variations. At St. 421 the type predominates and 

 grows to a much larger size than tenera. At Sts. 417 and 418 tenera predominates and 

 all specimens are rather undersized. At Sts. 286 and 447 tenera was not observed. 



Pearcey records the forms separately, but did not find the type umbonatus within the 

 convergence. Truncatulina tenera is recorded as "rare" at Sts. 342, 417. 



