"Cerion sanzi Blanes. Fig. 9.

Shell rimate, solid and strong, cylindric-conic. White, very sparsely and inconspicuously mottled with grayish or brown; luster­less, the ribs rather glossy. Lower three whorls of about equal diameter, those above forming a rather long cone terminating in an obtuse apex. Whorls 10-11½, the first smooth, the rest ribbed; ribs rather strong, narrow, separated by far wider interstices, 20-27 on the penultimate whorl, frequently in part obsolete on the last whorl, split on the base into an irregular striation. Aperture irregularly oval, the throat brown; peristome reflexed, more or less thickened, the terminations joined by a heavy parietal callus. Parietal tooth deep within, strong and rather long; columellar tooth well marked.

Alt. 27, diam. 11½, length of aperture 10 mm.

Alt. 23½  diam. 10½  length of aperture 9 mm.

Confites Key, N uevitas, Cuba.

This species has considerable resemblance to C. mumia, but differs conspicuously in the strong development of the parietal fold, the inner termination of which is not visible from the aperture. In some specimens the interior of the aperture is mainly white, the brown appearing far within. In one shell of the type lot there is a small accessory denticle to the left of the main fold." (Pilsbry & Vanatta, 1899:478)