22 GASTEROPODA. 



ruouth round ; last whorl keeled. White. Length, 1 ; breadth, '32 ; 

 angle of spire, 20. 



Auckland and Bay of Plenty. 



76. S. linGOla/tcl, Kiener. Shell accuniinate, iinperforate or sub- 

 perforate ; whorls five to seven, rounded ; varices- numerous, about 

 twenty in the body whorl, thin ; mouth oval. White, with a pale 

 brown band on the anterior part of the body whorl. Length, '45 ; 

 breadth, '2 ; angle of spire, 32. 



Australia. 



FAMILY PTRAMELLID^. 



Shell turreted, mouth eutire, columella with three or four plaits or 

 smooth ; operculum horny, spiral, of few -whorls. Animal with broad 

 folded tentacula and sessile eyes on the outer base of the tentacles. 



OBELISCUS. 



Turreted, smooth ; aperture semi-oval, entire, rounded anteriorly ; 

 columella straight, with more or less numerous folds. 

 Warm seas. 



77. O. rOSeUS, sp. nov. Whorls flattened, smooth. White, or 

 pinkish, spirally banded with dark pink. Length, '2 ; breadth, '1. 



Stewart's Island. 



CHSMNITZIA. 



Shell slender, elongated ; whorls plaited ; apex siuistral ; aperture 

 simple, ovate ; peristome incomplete. 

 Widely spread. 



78. C. zealandica, sp. nov. Turreted, whorls transversely 

 plaited, smooth. White. Length, '23; breadth, 'I. 



Stewart's Island. 



Very like Turbonilla nifida, A.ngas, Proc. Zool. Soc., 1867, p. 112. 



ODOSTOMIA. 



Shell subulate or ovate, smooth, apex sinistral ; aperture ovate ; 

 peristome not continuous ; columella with one fold ; lip tbin ; opercu- 

 lum indented on one side. 



Widely spread. 



79. O. lactea, Angas. Proc. Zool. Soc., 1867, p. 112. Shell 

 turreted, whorls flattened, very finely transversely striate. White, 

 sometimes slightly tinged with pink ; sub-diaphanous. Length, '3 ; 

 breadth, - 14. 



Stewart's Island. Australia. 



EULIMA. 



Shell turreted, polished ; mouth ovate ; columella simple, rather 

 thickened ; operculum half ovate. 

 Widely spread. 



