Anatoma concinna is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Anatomidae.
[1] 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.
[2] This marine species occurs off Japan.