70 



JS r otes on Species of Corbicidadce. 



and has no polish. The valves are sometimes slight, and when 

 held to the light are perfectly transparent. The hinge is broad 

 and strong. The cardinal teeth are robust and compressed. The 

 lateral teeth are broad and comparatively short. The lunula is 

 wanting. The interior is lilac and quite brilliant. 



The outline of this species recalls somewhat that of the Cor- 

 bicula prolongates, from Australia ; it differs otherwise, however, 

 in not having the same texture and in being more compressed. 



I am indebted to the kindness of Mr. Wheatley for this, as 

 also for the two following species. 



15. CorMcula Ijiiineana, now spec. 



Fig. II 



C. testa ovato-subtrigona, transversa, inaequilaterali, solidiuscula, coro- 

 pressiuscula ; lateribus obtusis ; umbonibus parvulis, 

 obtusis; cardine incrassato ; valvis intus violaceis, ad 

 margines saturatioribus ; irregulariter et dense stri- 

 ata ; epidermide fuscescente vestita ; lunula nulla. 



Long. 23 ; lat, 20 ; diam. 13 mill. 



Tlab. — Montes Laos, Cambodiae. Col. Prime. 



The shell is transverse, oval-subtrigonal, ine- 

 quilateral, somewhat solid and not much inflat- 

 ed. The lateral margins are obtuse. The beaks 

 are small and obtuse. The hinge margin is con- 

 siderably curved. The hinge is broad and 

 The anterior lateral tooth is curved. The interior is 

 violet, with a darker shade on the margins. The strire are irre- 

 gular and close. The epidermis is dark brown and is without 

 any polish. The lunula cannot be distinguished. 



On comparison with Corbicula Sayana, we find that the Cor- 

 bicula Linneana is larger, less transverse, more solid, the pos- 

 terior margin is more abrupt, the hinge is more robust, the color 

 of the interior is lighter, the sul cations are less regular and the 

 epidermis is darker and duller. 



Corbicula Linneana,, 



strong, 



