Anatoma parageia is a species of sea snail, a marine gastropod mollusk in the family Anatomidae.
The species name parageia comes from the Greek parageios, meaning pertaining to shallow water, referring to its intertidal or shallow subtidal habitat, which is unusual for an anatomid.
The shell of Anatoma parageia is minute, with a height of 0.74 mm and a width of 0.51 mm. The shell is thin, translucent, and has a slit typical of the family Anatomidae.
This species occurs off Japan, primarily in shallow subtidal zones and intertidal areas, often associated with rocky substrates and algae.