BULIMINIDAE 133 



sented at each by both long and short forms, the short predominating. Megalospheric 

 specimens in plastogamic union were found at each station. 



Note. The single plastogamic specimen found in the South Georgia area and regarded 

 with suspicion as a "stray", may be accepted as local in view of these later discoveries. 

 It was then incorrectly referred to and figured as Bulimina elegantissima, d'Orbigny, and 

 the South Georgia report should be amended (SG 172 and pi. iii, fig. 47). 



251. Buliminella seminuda var. apiculata (Chapman). 



Bulimina elegantissima var. apiculata. Chapman, 1907, TFV, p. 31, pi. iv, fig. 77. 

 Bulimina elegantissima var. apiculata, Sidebottom, 191 8, FECA, p. 123, pi. iii, fig. 11. 

 BiiUniinella spinigera. Chapman, 1918, etc., FAO, 1922, p. 113, pi. xxiii, figs. 1-4. 



One station : WS 482. 



A single specimen from 100 m. in the Bransfield Strait. 



Genus Robertina, d'Orbigny, 1846 



252. Robertina arctica, d'Orbigny (Plate V, figs. 52, 53). 



Robertina arctica, d'Orbigny, 1846, FFV, p. 203, pi. xxi, figs. 37, 38. 

 Robertina arctica sub Bulimitia subteres, Goes, 1894, ASF, p. 46. 



One station : WS 496. 



A single very good specimen from 631 m. in the Bellingshausen Sea. Although 

 originally described and figured by d'Orbigny in his Tertiary of Vienna monograph, his 

 types were not fossils but recent specimens from the North Cape and Siberia, and it has 

 always been regarded as an Arctic species. Goes considers that it cannot be distinguished 

 from Bulimina subteres, Brady, and suggests that d'Orbigny 's name should have pre- 

 ference. But the figure (No. 453 out of the series 445-453 illustrating Bulimina subteres) 

 which he selects as representing Robertina arctica is not particularly like d'Orbigny's 

 figure. 



253. Robertina minutissima (J. Wright) (F 133) (Plate V, figs. 50, 51). 

 One station: WS 514. 



A typical specimen from St. WS 514 in the Bellingshausen Sea, depth 531 m., is a 

 notable extension of the range of this tiny but very characteristic species, originally 

 described from Ireland. A single specimen was also found in the Falklands area. 



Genus Bulimina, d'Orbigny, 1826 



254. Bulimina pupoides, d'Orbigny (F 123). 

 Four stations: 182, 202; WS 484, 515. 



Very rare everywhere, and never quite typical. 



255. Bulimina elegans, d'Orbigny (F 127) (SG 167). 

 Seven stations: 181, 186; WS 494A, 497, 509, 510, 512. 



Confined to the Bransfield Strait, Palmer Archipelago and Bellingshausen Sea, where 

 it is frequent at Sts. 181, 186, WS 510 and 512. Rarely more than a single specimen at 



the other stations. 



16-2 



