SuTER. — Results of Dredging in Hauraki Gulf. 255 



15. Marginella allporti, Ten. -Woods. 

 Proc. Roy. Soc. Tasmania, 1877, p. 28. 



One dead shell. This is another addition to the list of New- 

 Zealand molluscs. 



16. Ancilla mucronata, Sowerby. 

 -Spec. Conch., part i, 1830, p. 8, figs. ^-48. 

 Six empty shells. 



17. Ancilla bicolor, Gray. 

 -Jukes, Voy. " Fly," vol. ii, 1847, p. 357, pi. 1, fig. 4. 

 A few young and empty shells. 



18. Odostomia angasi, Tryon. 

 Man. Conch. (1), vol. viii, 1886, p. 362, pi. 79, fig. 68. 

 Two dead shells. 



19. Odostomia vestalis, Murdoch. 

 Trans. N.Z. Inst., vol. xxxvii, 1905, p. 227, pi. 8, fig. 20. 

 One empty shell. 



20. Odostomia marginata, Murd. and Sut. 

 Trans. N.Z. Inst., vol. xxxviii, 1906, p. 297, pi. 25, fig. 37. 

 Several dead shells. 



21. Odostomia fastigiata, n. sp. Plate IX, fig. 3. 



Shell small, subcylindrically acuminate, imperforate, smooth, 

 with a distinct columellar plait. There is no sculpture, except 

 distinct incremental lines. Colour white. Spire high, slowly 

 tapering towards the small globular apex, more than three times 

 the height of the aperture. Protoconch heterostrophe, sub- 

 central, smooth, the apex tilted up and globular, one whorl. 

 Whorls 7, first slowly increasing, the last about half the length 

 of the whole shell ; base narrowly rounded. Suture distinct, 

 but superficial. Aperture vertical, ovate, truncated above by 

 the body-whorl. Outer lip very little curved, broken off ; 

 basal lip narrowly convex. Columella with a distinct blunt 

 plait above, slightly concave below. 



Altitude, 4-5 mm. ; diameter, 1-5 mm. 



Type to be presented to the Colonial Museum. 



One specimen only. This species stands nearest to 0. vestalis, 

 Murd., but it is more cylindrical, has no microscopic spiral stria- 

 tion, and the suture is not submargined. 



