Japonactaeon pusillus is a species of sea snail, a marine gastropod mollusc in the family Acteonidae.

The ovate-globose shell is whitish.

These are regularly and deeply punctate-striate.

[2] This marine species has a wide distribution and occurs off Florida Keys, USA; West Indies; Madeira; Mediterranean Sea and Japan (found at depths of 200 to 820 m)

This Heterobranchia-related article is a stub.