''Crassostrea'' is a genus of
true oyster
The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida.
Like scallops, true oysters have a central adductor muscle, which means the sh ...
s (family
Ostreidae
The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida.
Like scallops, true oysters have a central adductor muscle, which means the sh ...
) containing some of the most important oysters used for food. Some species in the genus have been moved to the genus ''
Magallana''.
Species
Extant species
Extant species include:
[Taxon list for ''Crassostrea''](_blank)
World Register of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
Content
The content of the registry is edited and maintained by scientific speciali ...
, accessed on 9 August 2017.
* ''
Crassostrea aequatorialis''
(d'Orbigny 1846)
* ''
Crassostrea angulata
The Portuguese oyster, ''Crassostrea angulata'', is a species of oyster found in the southwest Iberian Peninsula, closely related to the Pacific oyster. Although first identified as a native European species, genetic studies have suggested the Por ...
''
(Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolog ...
1819) – Portuguese oyster
* ''
Crassostrea brasiliana''
(Lamarck 1819)
* ''
Crassostrea chilensis''
(Philippi
Philippi (; grc-gre, Φίλιπποι, ''Philippoi'') was a major Greek city northwest of the nearby island, Thasos. Its original name was Crenides ( grc-gre, Κρηνῖδες, ''Krenides'' "Fountains") after its establishment by Thasian col ...
1845)
* ''
Crassostrea columbiensis''
(Hanley 1846)
* ''
Crassostrea corteziensis''
(Hertlein 1951)
* ''
Crassostrea cuttackensis''
(Newton & Smith, 1912)
* ''
Crassostrea dianbaiensis''
(Xia, Wu, Xiao & Yu, 2014)
* ''
Crassostrea rhizophorae''
(Guilding 1828)
* ''
Crassostrea sikamea''
(Amemiya 1928) – Kumamoto oyster
* ''
Crassostrea tulipa''
(Lamarck 1819) – mangrove oyster
* ''
Crassostrea virginica''
(Gmelin 1791) – Eastern oyster
Fossil species
Fossil species include:
[
* ]†
A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species). It is one of the modern descendan ...
''Crassostrea alabamiensis'' (Lea 1833)
* †''Crassostrea ashleyi'' ( Hertlein 1943) (syn. ''Ostrea arnoldi'')
* †''Crassostrea cahobasensis'' (Pilsbry and Brown 1910)
* †''Crassostrea contracta'' (Conrad 1865)
* †''Crassostrea cucullaris'' (Lamarck 1819)
* †''Crassostrea cuebana'' (Jung 1974)
* †''Crassostrea elegans'' (Deshayes, 1832) (syn. †''Cubitostrea elegans'' Deshayes 1832 or ''Crassostrea (Cubitostrea) elegans'')
* †''Crassostrea gigantissima'' (Finch 1824) – Giant fossil oyster
* †''Crassostrea gryphoides'' (Schlotheim 1813)
* †''Crassostrea hatcheri'' (Ihering 1899)
* †'' Crassostrea ingens'' (Zittel 1864)
* †''Crassostrea kawauchidensis'' (Tamura 1977)
* †''Crassostrea patagonica'' (d'Orbigny 1842) (syn. ''Ostrea ferrarisi'')
* †''Crassostrea raincourti'' (Deshayes 1858)
* †''Crassostrea titan'' (Conrad 1853) (syn. ''Ostrea prior'', ''O''. ''andersoni'')
* †''Crassostrea transitoria'' (Hupé 1854) (syn. ''Ostrea maxima'')
* †''Crassostrea wyomingensis''[J. Haffty, R. G. Schmidt, L. B. Riley, W. D. Goss. Rocks and Mineral Resources of the Wolf Creek Area, Lewis and Clark and Cascade Counties, Montana: A Descriptive Report on an Area in the Disturbed Belt Along the Eastern Front of the Northern Rocky Mountains in Western Montana, Issues 1441-1446]
Genetics
The genome of ''Crassostrea gigas'' (now '' Magallana gigas'') has been recently sequenced revealing an extensive set of genes that enable it to cope with environmental stresses.
References
Crassostrea
on britannica.com.
{{Taxonbar, from=Q542708
Bivalve genera
Extant Early Cretaceous first appearances