Anatoma regia is a species of minute sea snail, a marine gastropod mollusc in the family Scissurellidae.
This species is endemic
to the North
and South Islands
of New Zealand
, including the Three Kings Islands
This scissurellid is found at depths of about 180 m
The shells are depressed-trochiform
, with a much lower spire
than Anatoma mantelli
, much finer radial sculpture
and a different inner lip, that is broad below but tapers away to thin towards the umbilicus
The shell height is up to 2 mm, and width 2.5 mm.