Cerion (Strophiops) biminiense Henderson and Clapp, 1913

Original Description

"Shell shortly rimate, cylindric in the last two whorls, then gradually tapering to the apex; solid and strong; livid flesh-colored, frequently with whitish blotches, which include two or three ribs, or the ribs may be lighter than the body color; tip generally white and the last whorl much lighter below the periphery. Sculpture of regular, crowded ribs, narrower than their intervals; ribs slightly bent forward at the suture, 32 to 36 on the penultimate whorl in average specimens. Whorls about 10, very slightly convex, the last ascending in front. Aperture vertical, slightly flesh-tinted inside; peristome white, thick, well reflexed, terminations slightly approaching; parietal callus heavy, appressed/ Parietal tooth narrow and very short, about ½ mm. high, axial fold moderate. Smallest, length 19½, diam. 10¼, aperture 8½ x 7¾ mm., whorls 9, ribs 33. Largest, 27¾, diam. 13, aperture 11½ x 9¾ mm., whorls 10, ribs 37. Average, 24½, diam. 12, aperture 10 x 9 mm., whorls 10, ribs 36. There is considerable variation in the number of ribs, as a specimen 21½ x 10½ mm. has 38, one 22 x 11½ has 42, and one 27½ x 12 has only 31." (Henderson & Clapp, 1913:64-65)
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