58 DISCOVERY REPORTS 



Genus Rotalia, Lamarck, 1804 



222. Rotalia orbicularis (d'Orbigny) (A 511). 

 One station: 421. 



A good and typical specimen. 



223. Rotalia soldanii, d'Orbigny (F 394A) (SG 328) (A 512). 

 Two stations: 417, 447. 



Frequent at both stations, and exceptionally large at St. 417. 

 Pearcey: 342 "common", 447 "rare". 



Family NUMMULINIDAE 



Subfamily NONIONINAE 



Genus Nonion, Montfort, 1808 



224. Nonion pompilioides (Fichtel and Moll) (F 402) (SG 333) (A 515). 

 Three stations: 338, 421, 447. 



Frequent at St. 447, rare at the other stations. 

 Pearcey: 286, 342, 447 "sparingly", 



225. Nonion stelliger (d'Orbigny) (F 404) (SG 335) (A 516). 

 One station: 418. 



Two weak specimens only. 

 Pearcey: 417 "a few specimens". 



226. Nonion scapha (Fichtel and Moll) (F 407) (SG 338) (A 520). 

 Two stations: 312, 417. 



Extremely rare and far from typical. The few specimens found are so asymmetrical 

 that they are almost inseparable from Nonionella iridea (No. 227). I am convinced that 

 Noiiionella has no zoological value as a genus. 



Genus Nonionella, Cushman, 1926 



227. Nonionella iridea, Heron-Allen and Earland (F 410) (SG 339) (A 522). 

 Three stations: 312, 417, 418. 



Frequent at Sts. 417 and 418; a single specimen at St. 312. 



I cannot think how Pearcey can have overlooked this little form or its closely allied 

 relative Nonion scapha, with which he might have confused it, the two species being 

 zoologically very nearly akin. 



Genus Elphidium, Montfort, 1808 



228. Elphidium excavatum (Terquem) (F 413) (A 525). 

 One station: 338. 



Two small specimens from St. 338 in the Scotia Sea, but not recorded in the Weddell 

 Sea. 



Pearcey does not record any species of Elphidium within the convergence. 



