226 Transactions. — Zoology. 



spreading across to the outer lip, which is sharp and simple. 

 Height, T97 mm. ; breadth, 1*94 mm. 



Type in the Colonial Museum. 



Hab. Whangaroa Harbour (Mr. A. Hamilton). Found also 

 at Stewart Island (A. H.). 



This species, in its smoothness, solidity, and scanty umbilicus, 

 is perhaps nearest to C. carinata* Hedley, from New South Wales 

 (75-100 fathoms). It appears to be the first record of the genus 

 from New Zealand. 



Odostomia impolita, Hutton. Fig. 18. 



Rissoa impolita, Hutton, Cat. Marine Moll. N.Z., p. 29 (1873) ; 

 Proc. Lin. Soc. N.S.W., vol. ix., p. 941. Barleeia impolita, 

 Hutton, Manual N.Z. Moll., p. 81. B. impolita, Hutton, 

 Suter, Proc. Mai. Soc. London, vol. hi., p. 7. Odontostoma 

 impolita, Hutton " Index Faunae Novse-Zealandiae," p. 74. 



The figure offered is derived from specimens in the collection 

 of Mr. Henry Suter (hab. Foveaux Strait). These specimens 

 have 5 whorls (one more than given in the description of the 

 species), including the minute polished apex, the heterostrophe 

 character of which is not very clear, due apparently to its being 

 much buried in the succeeding whorl. The whorls are convex, 

 the last much longer than the spire. Spiral striae minute, 

 rather more pronounced on the anterior half of the last whorl. 

 Columella plait small, the lip anteriorly slightly effuse. 



The types are in the Colonial Museum. 



Hab. Stewart Island. 



Odostomia proxima,^n. sp.^Fig. 19. 



Shell small, elongated, rather fragile, smooth. White and 

 slightly shining. Whorls 6, somewhat rounded, the last a little 

 longer than the spire ; the apical whorl minute, polished and 

 heterostrophe. Sutures deeply impressed, not channelled. 

 Sculptured with longitudinal irregular minute growth-periods, 

 in places slightly pronounced, usually more marked on the spire. 

 These are crossed by minute spiral striae and scratches, very 

 irregularly spaced, in some almost absent except for a few on the 

 anterior half of the last whorl. Aperture small, ovate, oblique ; 

 columella slightly thickened and reflected, the plait not promin- 

 ent ; the. lip anteriorly rather effuse. Base narrowly perforate. 

 Length, 3'9mm. : breadth, 1*8 mm. 



Type in the Colonial Museum. 



Huh. Whangaroa Harbour (Mr. A. Hamilton). 



Distinguished from 0. impolita, Hutton. by its more rounded 



* " Memoirs Australian Museum," vol. i\.. pt. 6 (Thetis), L903, p. 345» 

 fig. 71. 



