SYSTEMATIC ACCOUNT 25 



Genus Vanhoeffenella, Rhumbler, 1905 



15. Vanhoeffenella gaussi, Rhumbler (SG 38) (A 51) (Plate I, fig. 5). 

 One station: 313. 



A single specimen from 1775 fathoms, a notable extension of depth. 



Genus Pelosina, Brady, 1879 



16. Pelosina cylindrica, Brady (A 56) (Plate I, fig. i). 

 One station: 417. 



A single large specimen, 20 mm. in length, was found in the trawl washings from 

 St. 417, on the continental slope off Coats Land. It has many specimens of Hyper- 

 amtnina friabilis and other species built into the wall of the test. 



Pearcey: 313, 417, 420 "sparingly". 



Genus Crithionina, Goes, 1894 



17. Crithionina granum. Goes (F 54) (SG 46) (A 61). 

 One station: 290. 



One small specimen. 



18. Crithionina mamilla, Goes (F 55) (SG 47) (A 62). 

 One station: 313. 



A single good specimen. 



Subfamily PILULININAE 

 Genus Bathysiphon, M. Sars. 1872 



19. Bathysiphon filiformis, G. O. Sars (A 70). 

 Eight stations: 226, 387, 394, 416, 421, 422, 438, 447. 



Fragments only, sometimes not uncommon. The best and largest were found at 

 Sts. 438, 447, 25 18-2103 fathoms, diatom ooze. Judging by its absence from the trawl 

 washings from Sts. 313, 417, the species does not favour a bottom of glacial clay or mud. 



Pearcey: 301, 418, 420 "nowhere abundant". He refers to the fact that the outer 

 layer of the test contains mineral particles of a larger size than is usually the case. This 

 characteristic is seen in specimens from several of my stations, but not universally, 



20. Bathysiphon argillaceus, Earland (A 75). 

 One station: 313. 



Only a single specimen. 



Subfamily SACCAMMININAE 

 Genus Sorosphaera, Brady, 1879 



21. Sorosphaera depressa, Heron-Allen and Earland (SG 55) (A 77). 

 One station: 417. 



A single-chambered detached specimen, probably referable to this species. 



