Calyptraea

Calyptraea, commonly known as the Chinese hat snails, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, a family which contains the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails.

==Species== Species within the genus Calyptraea include: Calyptraea africana Rolán, 2004 † Calyptraea alta (Conrad, 1854) Calyptraea aurita Reeve, 1859 Calyptraea barnardi Kilburn, 1980 Calyptraea burchi Smith & Gordon, 1948 Calyptraea capensis Tomlin, 1931 Calyptraea centralis (Conrad, 1841) Calyptraea chinensis (Linnaeus, 1758) Calyptraea conica Broderip, 1834 Calyptraea contorta (Carpenter, 1864) Calyptraea edgariana Melvill, 1898 Calyptraea fastigiata Gould, 1846 Calyptraea helicoidea (G. B. Sowerby II, 1883) Calyptraea inexpectata Rolán, 2004 Calyptraea lichen Broderip, 1834 Calyptraea mamillaris Broderip, 1834 Calyptraea pellucida (Reeve, 1859) † Calyptraea primogenita Kiel, 2003 (taxon inquirendum) Calyptraea renovata (Crosse & P. Fischer, 1890) Calyptraea sakaguchii Kuroda & Habe, 1961 Calyptraea spinifera (Gray, 1867) Calyptraea spirala (Forbes, 1852) Calyptraea subreflexa (Carpenter, 1856) † Calyptraea trochiformis Lamarck, 1804 Calyptraea ventricosa (Carpenter, 1857) Calyptraea yokoyamai Kuroda, 1929 Species brought into synonymy: Calyptraea aberrans C.B. Adams, 1852: synonym of Anomia peruviana d'Orbigny, 1846 Calyptraea adolphei Lesson, 1831: synonym of Crepipatella dilatata (Lamarck, 1822) Calyptraea amygdalus Valenciennes, 1846: synonym of Crepidula onyx G.B. Sowerby I, 1824 Calyptraea arenata Broderip, 1834: synonym of Crepidula excavata (Broderip, 1834) Calyptraea dormitoria Reeve, 1858: synonym of Cheilea dormitoria (Reeve, 1858) Calyptraea dorsata Broderip, 1834: synonym of Crepidula dorsata (Broderip, 1834) Calyptraea echinus Broderip, 1834: synonym of Crepidula aculeata (Gmelin, 1791) Calyptraea excavata Broderip, 1834: synonym of Crepidula excavata (Broderip, 1834) Calyptraea hystrix Broderip, 1834: synonym of Crepidula aculeata (Gmelin, 1791) Calyptraea incurva Broderip, 1834: synonym of Crepidula incurva (Broderip, 1834) Calyptraea lessonii Broderip, 1834: synonym of Crepidula lessonii (Broderip, 1834) Calyptraea marginalis Broderip, 1834: synonym of Crepidula marginalis (Broderip, 1834) Calyptraea monoxyla Lesson, 1831: synonym of Maoricrypta monoxyla (Lesson, 1831) Calyptraea plana A. Adams & Reeve, 1850: synonym of Crepidula walshi (Reeve, 1859) Calyptraea rugosa Carpenter, 1856: synonym of Crepidula onyx G.B. Sowerby I, 1824 Calyptraea sinensis (Linnaeus, 1758): synonym of Calyptraea chinensis (Linnaeus, 1758) Calyptraea spinosa G. B. Sowerby I, 1824: synonym of Crucibulum spinosum (G. B. Sowerby I, 1824) Calyptraea squama Broderip, 1834: synonym of Crepidula striolata Menke, 1851 Calyptraea strigata Broderip, 1834: synonym of Crepidula dilatata (Lamarck, 1822)