TELLINA.—Piatse XLVIII. 
side short, broadly truncated, obtusely angular, with 
dorsal margin depressed, straight, short, with large 
prominent ligament ; wmboes leaning slightly back- 
wards ; anterior side rather acuminated, dorsal mar- 
gin convex, sloped; a single approximate, anterior 
lateral tooth. 
Han ey, Pro. Zool. Soc. 1844. 
Hab, Philippines. 

Species 287. (Mus. Brit.) 
Trita Iris. el. testd parvd, subovatd, valde inequi- 

laterali, nitidd, moderate convexd, albidd, minutissime 
oblique stricid; latere postico brevissimo, flexuoso, 
aa. ; : 
angulato, infra acuminato, ad terminum truncato ; 
margine dorsali valde declivi; latere antico oblique 
oblongo, tumidiusculo. 
Tue Iris Tevurna. Shell small, subovate, very inequi- 
lateral, shining, moderately convex, whitish, very 
minutely obliquely striated; posterior side very short, 
flexuous, angular, acuminated at the lower part, trun- 
cated at the end; dorsal margin much sloped; an- 
terior side obliquely angular, rather tumid. 
Say, Journ. Acad. Nat. Sc. Philad. vol. ii. 
Hab, Carolina to Georgia, United States. 
