﻿SPmaERIUM.— Plate V. 



rotundo ; latere postico ohscmr anrjulato, ohiiisis- 

 sime subqwadrato. 

 The vinous Sphj:rium. Shell subqaadrately ovate, 

 tumid, ferruginous, a little ^vine-coloured, 

 banded ; umboes rounded ; anterior side short, 

 depressed, rounded ; posterior side obtusely 

 angular, very obtuselj' quadrate. 



SOWERBT. 



Hal). S. Africa. 



S2'JKvruim Capense of Krauss is a more shortly ovate 

 and m<iri' compressed lenticular shell than this. 



Species 46. (Mus. Brit.) 



SpH/TSRIUM translucidum. Sph. testa jjarvd, traiislu- 

 cidd, subconipressd, olh'iojn, aiifio' suhacuminatd, 

 postice expansd, late suhlnnirfil,!, viui-gme ventrali 

 Gonvexo, lato, margin r ih>rsi,li hnrinsculo, reeto ; 

 uiiibonihus acutis. 



The translucid Sphjerium. Shell small, translucid, 

 rather compressed, nblung, anteriorly slightly 

 acuminated, posteriorly exjianded, broadly sub- 



truncated, ventral margin convex, broad ; dorsal 

 margin rather short, straight ; umboes sharp. 



SOWERBY. 



Ilah. Palm-tree Creek, Australia. 



Species 47. (Mus. ? Copied.) 



Sbh^erium fereugineum, Sph. testa parvd, teniii, 

 fused, ohliqud, Icevi, valde inmquilaterali ; latere 

 antico brevissimo, angusto, subacuminato, margina 

 ■ventrali acclivo ; latere postico expanso, oblongo, 

 margine dorsali convexiiisculo ; margine postico- 

 laterali oblique subtruncato. 



The ferruginous Sphjirium. , Shell small, thin, 

 brown, oblique, smooth, very inequilateral ; 

 anterior side very short, narrow, subacuminate, 

 ventral margin sloped upwards ; posterior side 

 expanded, oblong, dorsal margin rather convex, 

 postero-lateral margin obliquely subtruncated. 



Krauss. Sudafrikanischen Mollusken. 



Hub. River Kynsa, S. Africa. 

 Resembling S/ih. inrarrnni. 



