Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Bivalvia
Subclassis: Pteriomorphia
Ordo: Arcida
Superfamilia: Arcoidea
Familia: Arcidae
Genus: Arca
Species: A. acuminata – A. ameghinorum – A. angulata – A. boucardi – A. bouvieri – A. despecta – A. imbricata – A. kauaia – A. koumaci – A. maculata – A. mauia – A. mutabilis – A. navicularis – A. noae – A. ocellata – A. pacifica – A. patriarchalis – A. reticulata – A. tetragona – A. truncata – A. turbatrix – A. ventricosa – A. volucris – A. zebra
Name
Arca Linnaeus, 1758
Type species: Arca noae Linnaeus, 1758
References
Lutaenko, K. A. & Maestrati P. (2007) A New Species of Arca L., 1758 (Bivalvia:Arcidae) from New Caledonia, with Comments on the Genus. Korean Journal of Malacology. 23(2):155–164. (PDF)
Arca is a genus of saltwater clams in the family Arcidae, the ark clams.
Description
As is typical for ark clams, species in this genus have a long, straight hinge line. Some species in this genus, such as Arca zebra and Arca noae, have a brown-and-white striped pattern. Arca attach themselves to rock with byssal threads which protrude through a gap on the ventral (open) side.
Species
Species within the genus Arca include:[1]
Arca acuminata Krauss, 1848
Arca angulata King & Broderip, 1832
Arca avellana Lamarck, 1819 - hazelnut ark
Arca boucardi Jousseaume, 1894 - Kobelt's ark
Arca bouvieri Fischer, 1874
Arca despecta Fischer, 1876
Arca imbricata Bruguière, 1789 - mossy ark
Arca kauaia (Dall, Bartsch & Rehder, 1938)
Arca koumaci Lutaenko & Maestrati, 2007
Arca maculata Sowerby
Arca mauia
Arca mutabilis (Sowerby I, 1833) - changeable ark
Arca navicularis Bruguière, 1789 - Indo-pacific ark
Arca noae Linnaeus, 1758 - Noah's ark
Arca ocellata Reeve, 1844
Arca pacifica (Sowerby I, 1833) - Panamic turkey wing
Arca patriarchalis Röding, 1798
Arca reticulata Gmelin, 1791
Arca tetragona Poli, 1795 - four-sided ark
Arca truncata Sowerby
Arca turbatrix Oliver & Cosel, 1993
Arca ventricosa Lamarck, 1819 - ventricose ark
Arca volucris Reeve, 1844
Arca zebra (Swainson, 1833) - Atlantic turkey wing
References
Serge Gofas (2011). "Arca Linnaeus, 1758". World Register of Marine Species. Retrieved April 9, 2011.
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