MO "TERRA NOVA" EXPEDITION. 



Stations o, G, 27, 31, 38, 45-48, 50. 54 (+ D.). 



Very rare in the N.Z. area (only Stations 5 and 6), wliere the specimens were few 

 and small. At Station 6 the single specimen, though small, had a greater development 

 of the rectilinear series of chambers than was observed anywhere else. In the 

 Antarctic the species is much more abundant, attammg a large size and consider- 

 able thickness of shell-wall, but the rectilinear chambers are, as a rule, but short, 

 the specimens being of a stout inflated type similar to Brady's fig. 14. The 

 best mdividuals at Stations 38. 45. 48 and 50. 



272. Cassidulina nitnluh (Chaster). 



Pulviniiliiia nhidula, Chaster, 1892, FS. p. 6G, pi. i, fig. 17. 



Cassidulivtt „ Heron-Allen and Earland, 1914, etc., FKA. 1915, p. G-")3. 



Station 27. 



A single typical specimen. 



EHRENBERGINA, Eeuss. 



273. Ehrenbergina serrata, Reuss. 



Ehrcnhergina serrata, Reuss, 1849~.50. FOT. p. .377, pi. iii (xlviii), figs. 7, a-c. 

 Cushmau, 1910, etc., FNP. 1911, p. 101, fig. 155. 



Stations 1-3, G, 8, 17, 18. 



This is one of the most typical Foraminifera in the X.Z. area, and at those 

 Stations where it occurs is both abimdant and varied, the variation being 

 principally m the development of the spmous margin. Tlie single specimen 

 from the Antarctic is differentiated by the marked development of the spines 

 on the central line, which are generally entirely suppressed in the N.Z. area. 

 Excellent glauconitic casts from Station 6. 



274. Ehrenbergina hystrix, Brady. 



Ehrenbenjina hystrix, Brady, 1879, etc., RRC. 1881, p. 60 ; 1884, FC4. p. 131, pi. Iv. figs. 8-11. 

 Cushmau, 1910, etc., FNP. 1911, p. 102, fig. 156. 



Station 18. 



The only individuals which agree entirely with Brady's description and figure 

 were found at Station 18 ; they present the characteristic thickening of the shell 

 with spmulation over the whole of the early chambers. 



275. Ehrenbergina hystrix, var. glabra, nov. 1*1. V, figs. 1-6, 11. 



Stations 2, 6, 11, 26, 27, 31, 38, 45-48, 50, 53-55 (+ D.). 



One of the most typical and abundant forms in the Antarctic is the vai;iety for 

 which we propose this name, on account of its smooth and highly polished surface- 

 texture, and the entire absence of the superficial spmes which characterize the early 

 chambers of Brady's type. The variety otherwise bears a strong resemblance 



