so DISCOVERY REPORTS 



The single specimen figured was found in 50 m. in the Bransfield Strait. It is re- 

 ferred with great hesitation to M. insignis, but must be regarded as entirely abnormal, as 

 it has a labyrinthine aperture and exhibits three chambers on each face, the central 

 chamber being more conspicuous on one face than on the other. In spite of this it is 

 probably trilocuHne and megalospheric, but this could not be verified without sectioning 

 the test. 



Apart from the abnormalities it is very like Brady's fig. 8 {ut supra). An alternative 

 attribution would be to Miliolina circularis var. sublineata (No. 24), but its comparatively 

 enormous size and corresponding strength of markings are against this. 



26. Miliolina labiosa (d'Orbigny) (F 34) (Plate I, figs. 5-7). 

 One station: WS 517. 



A single specimen, very thin-walled, from 2770 m. at St. WS 517. It is almost a 

 facsimile of d'Orbigny 's original figure. The species was originally described from shore 

 sand of Cuba, and its occurrence in deep water in the Bellingshausen Sea (66° i7'3o"S) 

 is noteworthy. It was recorded by the ' Terra Nova ' from the Antarctic, but not by 

 Wiesner, who only reports it at Kerguelen Island. 



27. Miliolina valvularis (Reuss) (F 35). 

 Three stations: 170, 175, 363. 



A single specimen at each station, very well developed at St. 170; very small at the 

 other stations. 



Genus Sigmoilina, Schlumberger, 1887 



28. Sigmoilina obesa, Heron-Allen and Earland (F 38) (SG 22). 

 Four stations: 170, 363 ; WS 202, 469. 



Very rare, but good specimens were found, the best at St. 170 in 342 m. The species 

 does not appear to have an extremely southern range, the highest latitude being about 

 61°, but it seems to be at home in all depths down to 3959 m. at St. WS 469, where the 

 single specimen found was well developed and quite typical. 



29. Sigmoilina schlumbergeri, A. Silvestri (F 39). 

 One station: WS 517. 



A single small specimen, doubtfully attributed to this species, was found at a depth 

 of 2770 m. 



30. Sigmoilina tenuis (Czjzek) (F 40) (SG 23). 

 Six stations: 384, 385, 386; WS 204, 403, 469. 



Frequent at Sts. 384, 385, rare or very rare elsewhere. All the stations are in deep 

 water between 3328 and 4773 m. in the Drake Strait and Scotia Sea. The narrow type 

 of Czjzek is very rare, single specimens only occurring as a rule. The general form is 

 extremely complanate, exactly resembling the figure of Spirolocidina temnssima, Reuss 

 (R. 1867, FSW, p. 71, pi. i, fig. 11), which is unquestionably a Sigmoilina, although the 

 sigmoid curve is very much flattened out. There are so many intermediate specimens 



