52 DISCOVERY REPORTS 



179. Lagena sulcata (Walker and Jacob) (F 189) (SG 248) (A 405). 

 Three stations: 417, 418, 421. 



Frequent at St. 421, and very variable in the development and number of the costae. 

 A single doubtful specimen at St. 418, and two of a curious compressed variety at St. 417. 



180. Lagena ventricosa, A. Silvestri (SG 249) (A 409). 

 Four stations: 417, 418, 421, 447. 



Common and large at St. 447 ; frequent good specimens at St. 417 ; rare or very rare 

 at the other stations. 



Subfamily NODOSARIINAE 

 Genus Nodosaria, Lamarck, 1812 



181. Nodosaria calomorpha, Reuss (F 252) (SG 254) (A 413). 

 One station: 417. 



A single specimen of two chambers only. 



182. Nodosaria communis, d'Orbigny (F 254) (SG 256) (A 415). 

 Two stations: 286, 421. 



Only single small specimens. 



183. Nodosaria mucronata, Neugeboren (A 417). 

 One station : 447. 



A single specimen. 

 Pearcey: 417 "rare". 



184. Nodosaria pauperata (d'Orbigny) (F 255) (SG 257) (A 418). 

 Three stations: 417, 421, 447. 



A few large specimens in fragments at St. 417; single examples at the other stations, 

 large (microspheric) at St. 447. 



185. Nodosaria raphanistrum (Linne) var. (A 421). 

 One station: 417. 



A few specimens of the curious little variety figured in A 421 were found at St. 417, 

 off Coats Land. Previously known from the Ross Sea and Drake Strait, its presence 

 there, taken in conjunction with other species of like distribution (e.g. Nos. 122, 127, 

 128, 137, 143, 155, 167, etc.), seems evidence of the circulation of Pacific water into the 

 most southern areas of the Weddell Sea. 



Genus Marginulina, d'Orbigny, 1826 



186. Marginulina glabra, d'Orbigny (SG 261). 

 Three stations: 417, 418, 447. 



Three very good specimens at Sts. 417 and 418, and one very small example at 

 St. 447. 



