SYSTEMATIC ACCOUNT 43 



A single good megalospheric specimen identical with the Discovery examples. The 

 record is of great interest in linking up the known areas of distribution, which now 

 extend from St. WS 482 in 57° 16' 30" W to the Gauss St. 56 in 89° 38' E. It also 

 marks a great extension of depth, Scotia St. 447 being in 2103 fathoms on diatom ooze, 

 the previous maximum being 385 m. at the Gauss station. 



Genus Virgulina, d'Orbigny, 1826 



115. Virgulina schreibersiana, Czjzek (F 138) (SG 174) (A 269). 

 Six stations: 286, 312, 417, 418, 421, 447. 



Frequent or common except at Sts. 312 and 447 where it is very rare. The specimens 

 are usually large, especially at St. 417. 

 Fearcey: 417, 418 "nowhere abundant". 



116. Virgulina bradyi, Cushman (F 141) (SG 176) (A 268). 

 One station: 447. 



A single small specimen only from this station, just inside the convergence. Its 

 rarity is remarkable. 



Genus Bolivina, d'Orbigny, 1839 



117. Bolivina punctata, d'Orbigny (F 143) (SG 177) (A 272). 

 One station: 418. 



A single very small and pauperate specimen. The noticeable absence of this species 

 in the Weddell Sea is probably accounted for by the great depth at most stations. 



Subfamily CASSIDULININAE 

 Genus Cassidulina, d'Orbigny, 1826 



118. Cassidulina laevigata, d'Orbigny (F 157) (SG 185) (A 283). 

 Three stations: 303, 417, 418. 



Single specimens only at Sts. 303 and 417 ; rare at St. 418 ; they are all in deep water, 

 1 13 1-2547 fathoms. 



119. Cassidulina crassa, d'Orbigny (F 160) (SG 188) (A 286). 

 Four stations: 286, 417, 421, 447. 



Never very common and all small at Sts. 286 and 421. Some very large specimens as 

 well as small at Sts. 417 and 447. 



120. Cassidulina crassa var. porrecta, Heron-Allen and Earland (F 161) (A 287). 

 One station: 447. 



A single large specimen from 2103 fathoms, just inside the convergence. 



121. Cassidulina subglobosa, Brady (F 162) (SG 189) (A 288). 

 Six stations: 286, 338, 417, 418, 421, 447. 



Small specimens are frequent or common at Sts. 286, 418 and 421 and rare at Sts. 



