Arca chemnitzii Philippi, 1851, [Basis of the current name] Range: 28°N to 35°S; 82°W to 35°W Depth: 11 to 75 m Maximum Reported Size: 22 mm Distribution: USA: Florida: West Florida; Brazil: Rio de Janeiro References: Maury (1920) W
Arca bicops sic, [Not available] Range: 20°N to 23°S; 75°W to 43°W Maximum Reported Size: 32 mm Distribution: Cuba, Guadeloupe, Martinique, Brazil: Rio de Janeiro References: d'Orbigny (1846) NSEWM; Dall (1898b) s Comments: Misspelling and misidentification of Arca bicors Jonas in Philippi, 1845 by d'Orbigny (1846: 652).
Arca cayenensis auct. non Lamarck, 1819, [Not available] References: Mikkelsen (2005) s Comments: Misidentification; this is the second variety included by Lamarck under Arca cayenensis.
Arca dorbignyi Kobelt, 1891, [Synonym] References: Mikkelsen (2005) s
Arca rhombea Born, 1778, [Synonym] Attributed to: Chemnitz (1784)
Arca rhombica sic, [Not available] References: Dall (1898b) s Comments: Error for rhombea, attributed to Rawson MS by Dall (1898: 636).