Calyptraeidae

Taxobox
name = Calyptraeidae


image_caption = "Sigapatella novaezelandiae"
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
subclassis = Orthogastropoda
superordo = Heterobranchia
ordo = Littorinimorpha
superfamilia = Calyptraeoidea
familia = Calyptraeidae
familia_authority = Lamarck, 1809
subdivision_ranks = Genera
subdivision = See text.
synonyms =

Calyptraeidae, or the slipper shells, are a taxonomic family of small to medium-sized sea snails, marine prosobranch gastropod molluscs. This family includes the slipper snails, the chinaman's hat snails, the cup and saucer snails and others.

hell description

Calyptraeids have shells that sometimes externally resemble those of limpets, but the family is not at all closely related to the true limpets; instead they are in the clade Littorinimorpha, and are more closely related to conches and cowries.

Although the outside of the shell can be somewhat limpet-like, inside the shell, calyptraeids are distinguished by a shelf-like, cup-like or half-cup-like shelly structure, which serves for muscle attachment.

Genera within the family Calyptraeidae

* "Calyptraea" Lamarck, 1799
* "Cheilea" Modeer, 1793
* "Crepidula" Lamarck, 1799
* "Crepipatella" Lesson, 1831
* "Crucibulum" Schumacher, 1817
* "Grandicrepidula" McLean, 1995
* "Maoricrypta" Finlay, 1926
* "Sigapatella" Lesson, 1930
* "Trochita" Schumacher, 1817
* "Zegalerus" Finlay, 1927

References

*
* Powell A. W. B., "New Zealand Mollusca", William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
* [http://www.gastropods.com/Taxon_pages/Family_Calyptraeidae.html Gastropods]