p.1

Crassatella aloeformis, Conrad, Jour. Ac. nat. Sc. vol 6 p. 228 pl. 10 fig. 1. Am. Jour. Sc. 2d. Ser. vol. 1 p. 396 pl. 3 fig. 3

Oblong-ovate, convex, with distinct lines of growth, which towards the anterior margin become regular prominent striae; umbo and beak flattened and profoundly sulcated; anterior margin of the umbo gibbous; posterior side produced, cuneiform, obliquely truncated at the extremity; umbonial slope somewhat angulated; lunule elliptical, profound; inner margin finely crenulated.

L. 2.1 -H. 1.0

Very much like the European C. rostrata, Desh. in outline, but differs in having [the] sulca over the whole disk.