''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusks in the family

Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=141 o ...

. This family includes the slipper snails (''Crepidula''), hat snails ('' Calyptraea''), spiny slipper snails ('' Bostrycapulus''), and cup-and-saucer snails ('' Crucibulum'') as well as '' Crepipatella'', ''Siphopatella'', ''Grandicrepidula'', and '' Maoricrypta''.Bouchet, P.; Gofas, S. (2011). Crepidula Lamarck, 1799. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137722 on 2011-05-21 These recent changes in the definition of ''Crepidula'' are based on both DNA sequence data as well as anatomical work. Dissections of various calyptraeids show that species that are now placed in ''Grandicrepidula'' and ''Maoricrypta'' are anatomically very different from the true ''Crepidula''. If only the shells are examined this difference is not apparent. This distinction is supported by DNA sequence data from 3 genes (COI, 16S and 28S). The genus ''Crepidula'' is probably the best studied group within the calyptraeids. A variety of species are commonly used in developmental, ecological, and behavioral research. They have been the major focus of research on protandrous sex-change in marine invertebrates and have been used to demonstrate that sex change is environmentally mediated (the timing of sex change depends on association with other individual snails). ''

Crepidula fornicata ''Crepidula fornicata'' is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails and cup and saucer snails. It has many common names, including common slipper shell, common Atlantic ...

'' and ''

Crepidula onyx ''Crepidula onyx'', the onyx slippersnail or onyx slipper snail, is a species of sea snail with gills, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails and cup-and-saucer snails. Shell description The shell of ''Crepidu ...

'' are well-studied examples of invasive, exotic species in marine habitats. Due to their simple shells and plastic morphology, calyptraeid taxonomy is challenging. In many cases distinct species with similar-looking shells have been lumped into a single species with either global or unusual distributions. In these cases close examination of the mode of development or of DNA data is vital to verify the species identity. Because such taxonomic lumping is difficult to clear from the internet or from the literature many species range estimates available on the internet include dubious data or data from species that have been taken out of synonymy.

Species

Species within the genus ''Crepidula'' include: * ''

Crepidula adunca ''Crepidula adunca'', common name the "hooked slippersnail" is a species of sea snail or "slipper snail", a marine gastropod mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of whic ...

'' G. B. Sowerby I, 1825 * ''

Crepidula aeola ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Caly ...

'' Dall, 1927 * ''

Crepidula aplysioides ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Caly ...

'' Reeve, 1859Rosenberg, G. (2010). ''Crepidula aplysioides'' Reeve, 1859. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532682 on 2011-01-11 * ''

Crepidula arenata ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Caly ...

'' Broderip, 1834 * ''

Crepidula argentina ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Caly ...

'' Simone, Pastorino & Penchaszadeh, 2000 * ''

Crepidula atrasolea ''Crepidula atrasolea'' is a species of small sea snail, a slipper snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and hat snails. This species is similar to '' Crepid ...

'' Collin, 2000 * ''

Crepidula badisparsa ''Crepidula badisparsa'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. It is a small species with flecks of tan and dark ...

'' Collin, 2005 * ''

Crepidula cachimilla ''Crepidula cachimilla'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Distribution The species was described based on s ...

'' Cledon, Simone & Penchaszadeh, 2004 * ''

Crepidula carioca ''Crepidula carioca'' is a species of sea snail, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Distribution Description The maximum recorded shell ...

'' Simone, 2006 * ''

Crepidula cerithicola ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Cal ...

'' (C.B.Adams, 1852) * ''

Crepidula complanata ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Cal ...

'' Krauss, 1848 * ''

Crepidula convexa ''Crepidula convexa'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. The maximum recorded shell length is 20 mm. Dist ...

'' Say, 1822 - synonym: ''Crepidula glauca'' * ''

Crepidula coquimbensis ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat ...

'' Brown & Olivares, 1996 * ''

Crepidula cymbaeformis ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails ('' Caly ...

'' Conrad, 1844 * ''

Crepidula depressa ''Crepidula depressa'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and hat snails. Distribution ''Crepidula depressa'' occurs along the Gulf coa ...

'' Say, 1822 * ''

Crepidula derjugini ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat ...

'' Golikov & Kussakin, 1962 * ''

Crepidula excavata ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails ('' Caly ...

'' Broderip, 1834 * ''

Crepidula fimbriata ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat ...

'' Reeve, 1859 * ''

'' (Linnaeus, 1758) - Common slipper shell, common Atlantic slippersnail, boat shell, quarterdeck shell. * ''

Crepidula glottidiarum ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat ...

'' Dall, 1905 * ''

Crepidula goreensis ''Crepidula goreensis'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Acces ...

'' Gmelin, 1791 * ''

Crepidula huertae ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails ('' Caly ...

'' Collin, 2019 * ''

Crepidula incurva ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails ('' Ca ...

'' (Broderip, 1834) * ''

Crepidula intratesta ''Crepidula intratesta'' is a species of sea snail, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Description The maximum recorded shell Shell may r ...

'' Simone, 2006 * '' Crepidula lessonii'' (Broderip, 1834) * ''

Crepidula maculosa ''Crepidula maculosa'' is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Distribution Description The maximum recorded shell ...

'' Conrad, 1846 * ''

Crepidula margarita ''Crepidula margarita'' is a species of sea snail, a marine gastropod mollusc in the family Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Access ...

'' Simone, 2006 * '' Crepidula marginalis'' Broderip, 1834 * '' Crepidula moulinsii'' Michaud, 1829 * '' Crepidula naticarum'' Williamson, 1905 * '' Crepidula navicella'' (Lesson, 1831) * ''

Crepidula navicula ''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Calyp ...

'' (Mörch, 1877) * '' Crepidula nivea'' C.B. Adams, 1852 * '' Crepidula norrisiarum'' Williamson, 1905 * '' Crepidula nummaria'' Gould, 1846 * ''