CULTELLUS.— Plate II. 



Species 8. (Mus. Brit.) 



Cl'ltellus attenuatus. Cul. tesht dejnessd, tenui, 

 alhidd, eindermide temiissimo indutd ; latere antico 

 ante mnboncs hreviiisado, elevato, rotundo ; latere 

 posficoatteimato,clongato,adtej'niinumsubacuminato. 



The attenuated Cultellus. Shell depressed, thin, 

 whitish, covered with a very thin epidermis ; 

 anterior side rather short in front of tho umboes, 

 raised, rounded ; posterior side attenuated, elon- 

 gated, rather acuminated at the end. 



DuNKEii. Proc. Zool See, ISGl. 



?I(di. Philippines. 



Species 9. (Mus. Brit.) 



Cultellus subellipticus. Cul. testa depressa, tenui, 

 hrevi, ovatd, alba; latere antico hreviiisado, an- 

 gusto ; latere jwstico lato, marginihus dorsali ven- 

 iralique convexis. 



The subelliptic Cultellus. Shell depressed, thin, 

 short, ovate, white; anterior side rather short, 

 narrow ; posterior side broad, with dorsal and 

 ventral margins convex. 



DuNKER. Proc. Zool. Soc, 1861. 



Hab. Singapore. Staits of Malacca. 



