"* Crepidulidae Fleming, 1822" . "* Trochitinae Gray, 1868" . "* Cryptinae Gray, 1868" . "* Mitrellinae Gray, 1868 (inv.)" . "* Dispotaeinae Gray, 1868" . . . "* Ergeinae Gray, 1868" . . . . "Calyptraeidae"@en . "* Galerinae Gray, 1857" . "The Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails, are a family of small to medium-sized marine prosobranch gastropods. This family includes the slipper snails (Crepidula species), the Chinese hat snails, (Calyptraea species), and the cup-and-saucer snails (Crucibulum species) among others. The Calyptraeidae are the only family in the superfamily Calyptraeoidea."@en .