Suher. — Neiu Species of Netv Zealand Mollusca. 365 



Hab. — Near Little Barrier Island, in 20 fathoms ; type (R. H. 

 Shakespear). 



9. Odostomia (s. str.) takapunaensis, n. sp. Plate XXVIII, 



fig. 10. 



Shell small, conical, narrowly umbilicate, smooth, fairly 

 solid, shining. There is no sculpture. Colour white. Spire 

 conic, about twice the height of the aperture ; outlines straight, 

 Protoconch heterostrophe, of 2 oblique whorls, nucleus lateral. 

 Whorls 7, regularly increasing, flatly convex, the last regularly 

 rounded at the periphery ; base flat. Suture impressed. Aper- 

 ture sub vertical, oval, broadly angled above, effuse below. Outer 

 lip slightly arcuate, sharp. Columella subvertical, arcuate, 

 with a distinct oblique plait above ; inner lip narrow, broaden- 

 ing a little below ; thin over the parietal wall. Umbilicus 

 narrow, but very distinct and quite open. 



Diameter, 2-2 mm. ; height, 4 mm. 



Type in my collection. 



Hab. — Takapuna Reef, in sand ; type (H. S.). 



10. Odostomia (s. str.) dolichostoma, n. sp. Plate XXIX, 



fig. 11. 



Shell small, ovate, imperforate, faintly shining, opaque. 

 Sculpture consisting of a few indistinct and distant spiral 

 striae on the body-whorl ; growth-lines rather strong, oblique. 

 Colour yellowish- white. Epidermis horny, very thin, easily 

 wearing off. Spire conic, somewhat scalar, about the same 

 height as the aperture ; outlines almost straight. Proto- 

 conch of 1 smooth and polished whorl, heterostrophe, oblique. 

 Whorls 4, the last very high, flatly convex, projecting out of 

 the suture ; base faintly rounded. Suture deep. Aperture 

 vertical, pyriform, high, sharply angled above, broadly rounded 

 and effuse below. Outer lip regularly arched, a little, thickened 

 inside, sharp. Columella subvertical, arcuate, with a feeble 

 plait above, placed rather deep within ; inner lip spreading a 

 little beyond the pillar, having a sharp outer edge, broadening 

 towards the base, and extending as a very thin glaze over the 

 parietal wall. [Operculum horny, inner margin very little in- 

 dented. 



Diameter, 2-1 mm. ; height, 4-2 mm. 



Type in my collection. 



Hab. — Cheltenham Beach, near Auckland (H. S.). 



11. Odostomia (s. str.) cryptodon, n. sp. Plate XXIX, fig. 12. 



Shell very small, ovate, fairly solid, imperforate, smooth, 



slightly shining. There is no sculpture, except fine oblique 



