Ptychodactis

Ptychodactis is a genus of sea anemones. It is the only genus in the monotypic family Ptychodactinidae.

Species
There are two species recognized in the genus:
 * Ptychodactis aleutiensis Eash-Loucks, Jewett, Fautin, Hoberg & Chenelot, 2010
 * Ptychodactis patula Appellöf, 1893