Genus Semelina W. H. Dall, 1900

(3-4-4-0-24-10-2-39-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 43
Bernard, 1983 p 47
Keen, 1971 p 259
Lindner, 1977 p 113
Vaught, 1989 p 132
Vokes, 1980 p 151
[see also as Subgenus under Genus Semele]
Ref. Abbott, 1974 p 514

nuculoides (T. A. Conrad, 1841)
(3-4-4-0-24-10-2-39-0-1-0-0-0)
Nut Semele
Ref. Amer. Fish. Soc., 1988 p 43
Syn. Amphidesma (Amphidesma) nuculoides T. A. Conrad in Hodge, 1841, not Semele nuculoidea W. H. Dall, 1900
Ref. Bernard, 1983 p 47

subquadrata (P. P. Carpenter, 1857)
(3-4-4-0-24-10-2-39-0-2-0-0-0)
Ref. Keen, 1971 p 259 bw d
Syn. Amphidesma (Amphidesma) nuculoides authors [not T. A. Conrad, 1841];
Montacuta subquadrata P. P. Carpenter, 1857
Ref. Bernard, 1983 p 47