ROTALIIDAE 185 



Genus Rupertia, Wallich, 1877 



496. Rupertia stabilis, Wallich (Plate X, figs. 23-25). 



Rupertia stabilis, Wallich, 1877, R, p. 502, pi. xx, figs. 1-12, ? 13. 



Rupertia stabilis, Brady, 1884, FC, p. 680, pi. xcviii, figs. 1-12. 



Rupertia stabilis, Cushman, 1918, etc., FAO, 1931, p. 138, pi. xxv, figs. 3-9. 



One station: WS 505. 



A few excellent specimens from 1500 m. at St. WS 505, which is in the extreme south 

 of the Bellingshausen Sea, near the ice barrier (70° 10' 30" S, 87'^ 46' W). This is a very 

 noteworthy extension of the range of a species which, though particularly of North 

 Atlantic and Arctic habitat, has been recorded occasionally from all parts of the world. 

 But it was not found by the Scotia, Terra Nova, or Gauss expeditions in the Antarctic, 

 and so far as I know its extreme southern record hitherto has been at Challenger St. 3 17, 

 to the north of the Falkland Islands in 48° 37' S, 55° 17' W, 1035 fathoms. 



Genus Globorotalia, Cushman, 1927 



497. Globorotalia hirsuta (d'Orbigny) (F 374) (SG 315). 

 Five stations: WS 204, 403, 468, 469, 471. 



Common at Sts. WS 403 and 469 and frequent at St. WS 204, rare elsewhere. All the 

 specimens are very thick-walled. The depths range from 3328 to 4344 m., and two of the 

 stations are outside or just within the Antarctic convergence line. 



498. Globorotalia scitula (Brady) (F 375) (SG 316). 

 Six stations: 180, 385, 387; WS 204, 469, 474. 



Common at St. 387 and frequent at St. 385, elsewhere rare or very rare. The speci- 

 mens are all of a large thick-walled benthic type, except the single specimen found at 

 St. 180 in 160 m. which is small and thin shelled. All the other stations are in deep 

 water, 2813-3959 m. 



499. Globorotalia menardii (d'Orbigny) (F 378). 

 One station: WS 393. 



A single small and thick-walled specimen. 



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

 Eight stations: 180, 200, 201, 387; WS 393, 469, 471, 474. 



Frequent at St. WS 469, elsewhere rare or very rare. Except at Sts. 387 and WS 469 

 the specimens are all small. 



501. Globorotalia truncatulinoides (d'Orbigny) (F 377) (SG 318). 

 Thirteen stations: 384-7; WS 204, 205, 403, 468, 469, 472, 474, 517, 555. 



Confined to deep water in the Scotia and Bellingshausen Seas, 2770-4773 m., several 

 of the stations being outside the Antarctic convergence line. It is common or very 

 common at Sts. 385, 386, 387, WS 204, 205, 403, 468 and 469, and frequent at St. 384; 

 rare elsewhere. The thick-shelled low form figured in the South Georgia report (pi. iv, 



DX 24 



