Arca (genus)
Arca est genus marinorum molluscorum bivalvium familiae Arcidarum, cui saltem sunt viginti tres species:
 Arca acuminata Krauss, 1848
 Arca angulata King & Broderip, 1832
 Arca boucardi Jousseaume, 1894
 Arca bouvieri Fischer, 1874
 Arca despecta Fischer, 1876
 Arca imbricata Bruguière, 1789
 Arca kauaia (Dall, Bartsch & Rehder, 1938)
 Arca koumaci Lutaenko & Maestrati, 2007
 Arca maculata Sowerby
 Arca mauia
 Arca mutabilis (G. B. Sowerby I, 1833)
 Arca navicularis Bruguière, 1789
 Arca noae Linnaeus, 1758
 Arca ocellata Reeve, 1844
 Arca pacifica (G. B. Sowerby I, 1833)
 Arca patriarchalis Röding, 1798
 Arca reticulata Gmelin, 1791
 Arca tetragona Poli, 1795
 Arca truncata Sowerby
 Arca turbatrix Oliver & Cosel, 1993
 Arca ventricosa Lamarck, 1819
 Arca volucris Reeve, 1844
 Arca zebra (Swainson, 1833)

Notae 

Arcidae
Taxa Linnaei
Taxa 1758