THE NAUTILUS. 47 



Hirasea major n. sp. Shell depressed, lens-shaped, brown, dull 

 and densely, finely obliquely striate above, paler, somewhat glossy 

 and more faintly striate beneath. Spire convex ; whorls 5, but 

 slightly convex, the suture superficial, filled by the peripheral keel ; 

 last whorl very acutely carinate, the keel narrowly projecting, base 

 convex, deeply impressed in the middle. Aperture oblique, obscurely 

 trapezoidal-lunate, the peristome thin in the specimens seen. Alt. 

 3.3, diam. 6.7 mm. Chichijima, Ogasawara (Mr. Y. Hirase, no. 865). 

 Much larger than the related H. hypolia, less polished below, and 

 with a more acute peripheral keel. The specimens may not be fully 

 mature. 



Hirasea diplomphalus var. latispira n. var. 



Similar to the typical form except that the spire is wider and less 

 sunken. Chichijima. 



Hirasea profundispira n. sp. 



A species similar to H. diplontphulus, but differing in the much 

 narrower spire, not one-third the diameter of the shell, and quite 

 deeply sunken. Alt. '2.3, diam. 3.3 mm. Chichijima. 



TWO NEW BULIMINI FROM CENTRAL ASIA. 



BY C. F. ANCEY. 



1. Buliminus larvatus, Anc. 



Shell rather solid, cylindrical, attenuated and conic towards the 

 apex, with an oblique and compressed umbilical fissure, somewhat 

 shining, whitish flesh-colored, with irregular and oblique rather 

 straight stripes of a darker hue. Apex brownish or horn-colored. 

 Spire produced, obtuse. Whorls 7-^-8. slowly increasing, not much 

 convex, suture simple, not deeply impressed ; the first 4 or 5 whorls 

 gradually becoming broader, the following of nearly the same diame- 

 ter, the last one cylindrical, compressed near the chink and obscurely 

 and obtusely angular at the base, not ascending in front. Aperture 

 oval, angulated superiorly, a little oblique. Peristome thickened 

 and labiated internally, but slightly expanded, more broadly so at 

 the columella. Margins distant, the columellar one simple and 

 arched. Parietal callosity more or less conspicuous, sometime^ 

 thickened on each side. 



Length 14|-15i, diam. 5^, length of apert. 5 mm. 



