78 



cula, olivacea ; denso squamata, squamla minutissimis, nitidis, ovatis ; 

 spira acuta; anfracfibus (G) rotnndatis, regulariter decrescentibHs ; 

 apertura integra, ovata. 



Shell turbinately conical, somewhat solid, olive, thickly 

 covered with very minute shining ovate scales ; spire acute ; 

 whorls (6) rounded, regularly decreasing, aperture ovate, 

 entire. Length 4, width 2 mill. 



Habitat, creeks throughout Tasmania. In old specimens 

 especially near Hobartou the scales are a good deal hidden 

 by green deposits of confervoid spcres. 



POMIATOPSIS. Tryon. 

 (Contributions to Conchology. New York, 1802.) 



Testa parva tenui, Imvigata, elongata, suhnmhilicata ; spira turrlta, 

 apertura ovata ; labio intemo reflexo. Operculum corneum. 



Shell small, thin, smooth elongate, sub-umbilicate. Si)ire 

 turreted. Aperture ovate, inner lip reflected. Operculum 

 liorny. 



1. PoMiATOPSis STRiATULA. Menke (Moll. Nov. Holl. p. 9. 

 Cox. mon. 1862 p. 95. PL xv. fig. 13 a.b.c.) P. testa pijrami- 

 data (soepe truncata), tenui, opaca, cameo-alba, intus rufo-fulva ; 

 anfractibus rotundatis, regulariter decrescentibus ; spira obtusa ; 

 apertura ovata, crassiuscula, integra ; labio interna ah anfractu, ultimo 

 disjuncto. 



Shell pyramidal, often truncate, thin, opaque, fleshy white, 

 inside reddish brown, whorls (6) rounded, regularly decreasing, 

 spire obtuse, aperture ovate, somewhat thickened, entire, 

 inner lip distinct from the last whorl. Length 7, breadth 

 3 mill. 



Habitat, Muddy and Clarence Plains, Eev. H. D. Atkinson. 

 This shell was described as Blanfordia by Dr. Cox, as it was 

 thought to be a land shell, but the Pomiatopsinae are am- 

 phibious. This specimen is said to be found in South Aus- 

 tralia, Victoria, and elsewhere. I believe I have found it in the 

 interior of the continent in freshwater swamps in the Murray 

 deserts, South Eastern district, &c. 



ASSIMINEA. Leach. 



(A synopsis of Moll, of G. Brit. Lond., 1820.) 



Testa pyramide-conica, solidiuscula umbilicata, umbilico panto et 

 fere occidto ; anfractibus Imvigatis declivis convexis ad basim obtu^se 

 angulatis apertura integra, ad anfr. ultint. adherenti, columella tenuiter 

 callosa. Operculum, corneutn. 



Shell pyramidally conical, somewhat solid, umbilicate, um- 

 bilicus minute, small and nearly hidden,whorls smooth, sloping 

 convex, obtusely angular at the base, aperture entire, ad- 



