Homalopoma nocturnum
# Homalopoma nocturnum

Homalopoma nocturnum is a species of sea snail, a marine gastropod mollusk in the family Colloniidae.

## Description

The size of the shell varies between 4 mm and 7 mm. The small, solid shell has a globose shape. It has 4-4½ rotund whorls, marked with subgranulose transverse ribs. The suture is obvious. The rotund aperture is iridescent and pearly within. The lip is thickened.

## Distribution

This marine species occurs off Southern Japan.

