Nerita filosa
Nerita filosa, common name the threaded nerite, is a species of sea snail, a marine gastropod mollusk in the family Neritidae.
Description
The shell is globosely turbinate, with an exserted, sharp-pointed spire. Its whorls slant at the upper part, then become convex, and are spirally threaded with minutely divided ridges. The outer lip is inwardly thickened, minutely crenulated, and features a sharp lateral denticle on each side. The columella is smooth and finely toothed. The shell's color is rusty fawn, with the ridges delicately blue-black.
Distribution
This marine species occurs Vanuatu and New Caledonia.