ANODON.—Ptate XV. 
Species 56. (Mus. Cuming in Brit.) | 
ANODON TRIANGULARIS. An. testa solidd, tumidd, sub- 
cuncatd, levigati, pallidé stramined ; latere postico 
oblongo, peroblique biangulato, angulo antico arcuato, 
elevato, margine dorsali elevato, convexo, maryine ter- 
minal inter angulos truncato, margine ventrali postice 
subcoutracto, antice convexo ; latere antico brevi, wi- 
bonibus undulatim rugatis. 

‘THe TRIANGULAR ANODON. Shell solid, tumid, subcu- 
neate, smooth, pale straw; posterior side oblong, 
very obliquely biangular, anterior angle arched, ele- 
vated, dorsal margin elevated, convex, terminal mar- 
gin posteriorly shghtly contracted, anteriorly convex ; 
anterior side short, umboes with wave-like wrinkles. 
Lanza? 
Hab. 
¥ 

A very tumid, angular shell, easily distinguished from 
« fo) 7? fa) 
any other species with which I am acquainted. 

