•414 Notes on Sjiecies of the Family Corbiculadai. 



XLIL — Notes on Sjjecies of the Family Corbiculad^e, with 



Figures. 



By Temple Prime. 



(Continued from page 237.) 



Read March 25, 1S67. 



Genus CORBICULA. 



46. Corbicula insuiaris, nov. spec. 



FlG ' 67 - C testa orbiculata-trigona, compressiuscula, 



sub-aequilaterali ; antice latiore; epidermide 

 olivaceo-flava, nitente vestita ; striis regularibus; 

 urabonibus inflatis, obtusis ; valvis intus pallide 

 violaceis; cardine angulato inorassato. 



corbicuiaiDsuiaris. Long. 23 ; lat. 21 ; diam. 14 mil]. 



Hah. — Insula Formosa. Collect. Prime. 



The shell is orbicular, trigonal, somewhat compressed, and 

 nearly equilateral. The anterior side is the broader. The 

 epidermis is olive-yellow and polished. The strise are regu- 

 lar. The beaks are inflated and obtuse. The interior of the 

 valves is pale violet. The hinge is angular and strong. 



The epidermis of the young is lighter in shade than in the 

 adult. 



47. Corbicula mediocris, Prime. 



Corbicula mediocris, Prime. Annals N. Y. Lyceum Nat. Hist., vol. vii. 481. 1862. 

 Prime Cat. 4. 1 863. 



Fl ° 68 - C. testa ovato-transversa, 



compressiuscula, subaequilate- 

 rali ; latere antico subangula- 

 to, postico subtruncato ; epi- 

 dermide flavescente-viridi, ni- 

 tente vestita, ad umbones 

 atro - violascente maculata ; 

 striis regularibus ; umbonibus 



Corbicula mediocris. 



