Arca (bivalve)

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: • 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==