l:j6 "TEKKA NOVA ' EXPEDITION. 



257. Bolivina karreriana, Brady. 



Bolivina l-amriana. Brady, 1879, etc., RRC. 1881, p. 58 ; 1884, FC. p. 1:24, pi. liii, figs. 19-21. 

 Cushman, 1910, etc., FNP. 1911, p. 40, fig. 65. 



Stations 4, G, 8. 



\cv\ rare, except at Station 6, where it is abundant and beautifully developed, 

 tlie apical spine often attaining great length. 



258. Bolivina obsoleta (Eley). 



Textularia obsoleta, Eley; 1859, Geology in the Garden, p. 202, pi. viii, fig. lie. 

 jMarfn7a<em,"Scliwager, 1886, FKN. p. 253, pi. vii, fig. 103. 



Millett; 1898, etc., FM. 1899, p. 559, pi. vii, fig. 3. 

 Bolivina obsoleta. Heron-Allen and Earland. 1908, etc., SB. 1910, p. 409. 



Station 6. 



A verv fine series of specimens, all megalospheric. Some of them show a strong 

 tendency to a spiral twist. We see no reason to depart from the opinion we 

 expressed in 1910. Reuss used the name Textularia obsoleta (R. 1845-40, FBK. 

 pt. 1, p. 39, pi. xiii, fig. 79) for a species which he admits is probably the same 

 as T. laevis, Roemer (R. 1841. VNK. p. 97. pi. xv, fig. 17). They appear tons 

 to be identical, and Reuss's name must therefore lapse. 



259. Bolivina tortuosa, var. arenacea, nov. PI. IV, figs 34, 35. 



Station 2 (+ D.). 



A single specimen exhibiting the characteristic flexure of this form, but with 

 a test constructed of very fine sand-grains and ferruginous cement. But for the 

 curve in the axis of growth this form would be inseparable from our B. inflata, 

 var. arenacea, and raises once more the question of the specific value of B. 

 tortuosa, to which we referred under that species in 191 G (H.-A. & E. 1916, 

 FWS. p. 240). The aperture is a small compressed tube (bifarine) at the 

 extremity of the final chamber. 



Size: — Length, ■25mm.; breadth, ■13mm. 



'&"■ 



2G0. Bolivina robusta, Brady. 



Bolivina robusta, Brady, 1879, etc.. RRC. 1881, p. 57; 1884, FC. p. 421, vol. liii, figs. 7, 9. 

 Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 646. 



Stations 1-3. G-8. 10. 11, 32 (-|-R. d. J.). 



Abundant in the N.Z. area, but represented by a single typical specimen 

 only in the Antarctic. At most of the Stations the prevalent type is a very 

 decorative variety with strongly limbate sutural lines which are coarsely perforate, 

 the walls of the chambers themselves bemg clear and free from perforation. 

 Brady's type without limbation occurs at Stations 6, 10. and 11. with the 

 limbate variety. A very fine series of specimens were obtamed at Station G, 10 

 and 11, representhig both megalospheric and microspheric specimens. At Stations 



