MILIOLIDAE 49 



19. Miliolina pygmaea (Reuss) (F 25) (SG 18). 

 One station: 170. 



Only a single specimen was found. 



20. Miliolina venusta (Karrer) (F 26) (SG 19). 

 Four stations: 360, 384, 385, 386. 



Typical and frequent at St. 385, single typical specimens at the other stations, that 

 at St. 360 being very small. All the stations are in deep water. 



21. Miliolina trigonula (Lamarck) (F 27). 

 One station : WS 482. 



Only a few weakly developed specimens were observed. 



22. Miliolina tricarinata (d'Orbigny) (F 28) (SG 20). 



Nineteen stations: 170, 177, 363, 384, 385, 386; WS 204, 383, 384, 385, 403, 468, 481, 482, 483, 

 485,487, 505, 507 B. 



Frequent at St. WS 482, the specimens being of average size; also frequent but very 

 small at St. WS 505. Rare or very rare elsewhere. The stations cover every range of 

 depth. Nowhere do the specimens attain the large size observed in South Georgia, and 

 the aperture is always typically milioline ; no specimens with cruciloculine or irregular 

 apertures were observed. At a few stations, notably 177 and WS 505, 507 b, very small 

 and rather elongate individuals were found. It is quite possible that these are not true 

 Miliolinae, but microspheric young individuals of the very large species of Pyrgo found 

 at the same stations. 



Wiesner (W. 193 1, FDSE, p. 105) records under the name Miliolina tricarinata \ar . 

 crucioralis, nov. var., but does not figure, an organism which from its description appears 

 to be identical with Cruciloculina triangularis, d'Orbigny, a synonym of M. tricarinata 

 (See F 28). 



23. Miliolina circularis (Bornemann) (F 29) (SG 21). 

 Five stations: 167, 170, 177, 186, 360. 



Large and typical specimens are not uncommon at St. 170 ; single smaller individuals 

 at Sts. 177, 186. A few found at St. 167 were small and far from typical, and the single 

 specimen from St. 360 in 3264 m. was extremely small and pauperate. 



24. Miliolina circularis var. sublineata, Brady. 



Miliolina circularis var. sublineata, Brady, 1884, FC, p. 169, pi. iv, fig. 7. 



TrilocuUna circularis var. sublineata, Cushman, 1910, etc., FNP, 1917, p. 68, pi. -xxvi, fig. 2. 



One station: 170. 



A single large and typical specimen was found. 



25. Miliolina insignis, Brady (Plate I, figs, i, 2 and Plate IX, fig. i). 



Miliolina insignis, Brady, 1879, etc., RRC, 1881, p. 45. 

 Miliolina i?isigtiis, Brady, 1884, FC, p. 165, pi. iv, fig. 8, ? fig. 10. 

 TrilocuUna insignis, Cushman, 1918, etc., FAO, 1929, p. 64, pi. xvii, fig. 2. 



One station : WS 482. 



DX 7 



