78 



Notes on Species of Corhicidadce. 



25. Corbicula Ijargillicrti, Deshayes. 



Cyrena Largillierti, Philippi. Zeit. Malak. 163. 1844. Phil. 



Abbikl. II. 75, pi. 1, f. 1. 1844. 



Corbicula Largillierti, Deshayes. Biv. Brit. Mus. 225. 1854. 



Prime Cat. 3. 1863. 



C. testa trigona, subsequilaterali, compressiuscula, epidermidc olivacea 

 p I0 2T. induta ; latere antico lato, rotundato, pos- 



tico angustiore, acuminate-, obtuso ; umbo- 

 nibus tmnidis, elevatis, antice inclinatis, 

 incurvis, approximatis ; lunula indistincta ; 

 dense et irregulariter striata ; epidermide 

 olivacea induta ; pagina interna albida, ad 

 margines violacea ; cardine incrassato. 



Long. 36 ; lat. 33 



diam. 20 mill. 



Corbicula Larsrillierti. 



TIab. — In flumine Yang-tse-Kiang, 

 Cbinae. Collect. "Wheatley, Jay, et 

 Prime. 



The shell is trigonal, subequilateral, 

 and somewhat compressed. The an- 

 terior side is broad and rounded, the 

 posterior side is narrow, produced, 

 and obtuse. The beaks are full, 

 raised, inclined, curved inwardly and 

 approximate. The lunula is indistinct. The striae are close, 

 light, numerous, and irregular. The epidermis is olive color. 

 The interior is white with violet on the margins and on the 

 lateral teeth. The hinge is broad and very much curved. 



This species is easily recognised by the elevation and pro- 

 trusion of the beaks, which are also very much inclined. 



Compared with Corbicula Chemnitziana, the beaks are more 

 raised, the shell is more trigonal, the hinge is more angular, 

 and the coloring and disposition of the strise are different. 



