Anarithma maesi is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.

The protoconch is conical, smooth and brown and is made up of three and a half to four whorls.

The shell is entirely pale brown, with a whitish spiral band on the upper part of the body whorl.

The species is quite similar to Anarithma metula, from which it differs by its brown protoconch.

"[3] This marine species occurs off Réunion "It is rare, up till now always found dead in hand-dredged muddy black sand, at depths ranging from 16 to 80 m., but mostly at 40 m."[4]