Anatoma concinna

Anatoma concinna is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Anatomidae.

Description
The ovate shell is rather depressed. The small spire is scarcely elevated and narrowly, profoundly umbilicate. The 2½ convex whorls are decussated by elevated radiating and concentric striae. The oblique aperture is suborbicular.

Distribution
This marine species occurs off Japan.