Pleurotomella normalis
Pleurotomella normalis is a species of sea snail in the family Raphitomidae. It was described by Dall in 1881. Synonyms include Gymnobela blakeana blakeana normalis and Pleurotomella (Bleka) blakeana.
Description:
The shell is short and stout with seven whorls. The body whorl makes up about eight elevenths of the total length. The protoconch apex is smooth, followed by 3½ yellow-brown nuclear whorls finely reticulated with wavy lines, then turning waxy white. The later whorls have spiral threads in pairs, which often fuse into a single flattened thread, with wider gaps between threads. Near the suture, two or three threads are stronger, the outer one strongest, giving a turreted look and small knobs on the ridges. The ridges are sharp, about 16–18 across, fading toward the siphonal canal and following the growth lines. The columella is straight, with an obliquely cut edge shorter than the aperture. There is a light callus on the body. The aperture is wide, thin-lipped, and about half the shell length.
Distribution:
This species occurs in the Yucatan Strait.
This page was last edited on 3 February 2026, at 12:20 (CET).