Subgenus (Arcopsis) A. v. Koenen, 1885

(3-7-3-0-1-1-5-1-1-0-0-0-0)
Ref. Bernard, 1983 p 16

adamsi (W. H. Dall, 1886)
(3-7-3-0-1-1-5-1-1-1-0-0-0)
Adams Ark, Adams' Miniature Ark
Ref. Amer. Fish. Soc., 1988 p 24
Keen, 1971 p 52
Syn. Arcopsis (Arcopsis) adamsi "Shuttleworth" E. A. Smith, 1888;
Arcopsis (Arcopsis) conradiana W. H. Dall, 1886
Ref. Abbott, 1974 p 425 d

adamsi "Shuttleworth" E. A. Smith, 1888
(3-7-3-0-1-1-5-1-1-2-0-0-0)
[=Arcopsis (Arcopsis) adamsi (W. H. Dall, 1886)]
Ref. Abbott, 1974 p 425

conradiana W. H. Dall, 1886
(3-7-3-0-1-1-5-1-1-3-0-0-0)
[=Arcopsis (Arcopsis) adamsi (W. H. Dall, 1886)]
Ref. Abbott, 1974 p 425

limopsis A. v. Koenen, 1885 [T]
(3-7-3-0-1-1-5-1-1-4-0-0-0)
Ref. Abbott, 1974 p 425

solida (G. B. Sowerby, 1833)
(3-7-3-0-1-1-5-1-1-5-0-0-0)
Ref. Abbott, 1974 p 425
Syn. Arca (Arca) fusca authors, not J. G. Bruguiere, 1792;
Barbatia (Barbatia) digueti J. Mabille, 1895;
Byssoarca solida G. B. Sowerby, 1833
Ref. Bernard, 1983 p 16
Syn. Barbatia (Barbatia) digueti J. Mabille, 1895
Ref. Keen, 1971 p 52 bw