FORAMINIKEHA— HERON-ALLEN AND EARLAND. 77 



PELOSINA, Brady. 



70. Pelosina variabilis, Brady. 



Pehsina variabilis, Brady, 1879, etc., RRC. 1879, p. 30, pi. iii, figs. 1-3. 

 Heron-Allen and Earland, 1916, FWS. p. 218. 



Stations 2, 55. 



A few doubtful, small specimens at Station 2. In the Antarctic a very good 

 example at Station 55. 



71. Pelosina rotunda/n, Brady. 



Pelosina rotundata, Brady, 1879, etc., RRC. 1879, p. 31, pi. iii. tigs. 4, 5 ; 1884, FC. p. 236. 

 pi. XXV, figs. 18-20. 

 Millett. 1898, etc., FM. 1899. p. 219. i,l. iv. fig. 1. 



Stations 46, 50, 55. 



Confined to the Antarctic. A small individual at Station 46, presenting a 

 tubular chitinous neck ; large and more typical at Stations 53 and 55, but oval 

 in shape and without the produced neck, resembling in shape and surface-con- 

 struction the figures of P. urctica. Awerinzew (Sibirischen Eismeer, 1911, Mem. 

 Ac. Imp. Sci. St. Petersburg. Ser. 8, vol. xxix. No. 3. p. 7. pi. 0. figs. 7. 8.) 



72. Pelosina cyliiidrica, Brady. 



Pelosina cylindrica. Brady, 1884, FC. p. 236, pi. xxvi, figs. 1-6. 



Cushman, 1910, etc., FNP. 1910, p. 46, figs. 50, 51. 



Stations 38, 48 ( + D.). 



Confined to the Antarctic. One good specimen at Station 38, and a very large 

 one at Station 48. 



STORTHOSPHAERA, Schulze. 



73. Storthosphaera alhida, Schulze. 



Storthosphaia alhida. Schulze, 1874, R. p. 113, pi. ii, fig. 9 u-d. 



„ Brady, 1884. FC. p. 241. pi. xxv, figs. 1.5-17. 



Station 6. 



The species is represented l)y a single specimen. In this, the external 

 corrugations characteristic of the genus are but weakly developed, and the 

 general appearance of the test is strongly suggestive of an affinity with Crithionina 

 rugosa, C4oes (G. 1896, DOA. p. 24. pi. ii, figs. 3, 4). 



Although S. albida, as seen in Schulze's figures and in typical specimens from 

 the deep areas of the North Sea, is a very distinctive form, it differs but very 

 slightly from the later estalilished genus Crithionina. The principal distinctions are 

 the comparatively large size of the internal cavity in Storthosphaera, and the thinness 

 of the investing wall, coupled with the corrugated exterior, but Pearcey's species, 

 *S. depressa (P., 1900, RCA. p. 37. pi. 1. fig. 1, a-c), appears to us to form a 

 connecting link between the two genera. Owing to the rarity or absence of 

 the external corrugations, the rougher construction of the test, and the decrease 



