]:\2 "TERRA is OVA" EXPEHTJ loX. 



238. VirguUna paucilocuhta, Brady. 



VirguUna paiicilocidala, Brady, 1884, FC. p. iU. j)!. lii, figs, i, 5. 



Liebus, 1902, EOM. p. 81. pi. v, figs. 4 a, b. 



Station 6. 



A single typical specimen. 



BIFARINA, Parker and Jones. 



239. Bifarina ponecfa (Brady). PI. lY. figs. 23-26. 



Boliviiia porrecta. Brady, 1879, etc., RRC. 1881, p. .57 ; 18S4, FC. ]). 418. pi. lii. fig. 22. 

 Bifarina „ Heron-Allen and Earland. 191-5, FKA. p. 64.3. 



Station 48. 



One very large individual characterized by a great number of chambers, sixteen 

 pairs, and the fact that, m gro^vmg, the long axis of the shell traverses almost 

 an entire revolution is noteworthy. 



240. Bifarina porrecta. var. arenacea, nov. PI. IV, figs. 23-26. 



Station 6. 



At Station 6 some half dozen examples were obtamed of an extremely 

 interestmg variety referable to this species, which has hitherto only been known 

 in the hyaline condition. The te.st is regularly bolivine up to half its length, the 

 chambers then become gi-adually elongate, the last pair of chandlers being produced 

 and terminating in a final oral extremity characteristic of Bifarina as opposed to its 

 relative Bolivina. The test is composed of fine sand-grams agglutinated with 

 ferruginous cement to form a neat matt surface. 



The only form with which these N.Z. .specimens could be confused is Textu- 

 laria fusiformis, Chaster (C. 1892, FS. p. 58, pi. i. fig. 3), from which they differ 

 in their rounded edge and oval section. The aperture at the end of a produced 

 extension of the chamber resembles Chaster's form, which occupies a somewhat 

 anomalous position in the genus Textularia, and might, perhaps with advantage, 

 be transferred to Bifarina. The structure of the test is different, Chaster's 

 species invariably using flakes of mica and other minerals. 



Size: — Length -40- "45 mm.; maximum breadth '10- "14 mm.; thickness 

 •08 mm. 



BOLIVINA. dOrbigny. 



241. Bolivina punctata, d'Orbigny. 



Bolivina punctata. d'Orbigny. 1839, FA:\I. p. 63, pi. viii, fig.s. 10-12. 



Heron-Allen and Earland, 1914, etc., FKA. 1915, p. 644. 



Stations 2-11, 14. 16. 19. 27. 31. 55 (+ R. d. J.). 



At most Stations between 2 and 19 fairly common. At most Stations a 

 long, narrow microspheric form was the only representative. At Stations IG and 



