Genus Sphenia W. H. Turton, 1822

(3-4-3-1-3-3-3-6-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 45
Bernard, 1983 p 58
Syn. Spaeria authors;
Spenia authors;
Sphaena authors;
Sphaenia authors;
Sphena authors;
Sphenica authors;
Syphonia authors;
Tyleria H. & A. Adams, 1854
Ref. Vaught, 1989 p 137
[see also under Subfamily: MYINAE]

antillensis W. H. Dall & C. T. Simpson, 1901
(3-4-3-1-3-3-3-6-0-1-0-0-0)
Antillean Sphenia
Ref. Amer. Fish. Soc., 1988 p 45

californica T. A. Conrad, 1837
(3-4-3-1-3-3-3-6-0-2-0-0-0)
[=Cryptomya (Cryptomya) californica (T. A. Conrad, 1837)]
Ref. Bernard, 1983 p 58
[see under Subfamily: CRYPTOMYINAE]

fragilis P. P. Carpenter, 1857
(3-4-3-1-3-3-3-6-0-3-0-0-0)
[=Sphenia luticola (A. Valenciennes, 1846)]
Ref. Bernard, 1983 p 58

globula W. H. Dall, 1919
(3-4-3-1-3-3-3-6-0-4-0-0-0)
[=Sphenia luticola (A. Valenciennes, 1846)]
Ref. Bernard, 1983 p 58

hatcheri H. A. Pilsbry, 1899
(3-4-3-1-3-3-3-6-0-5-0-0-0)
Syn. Sphenia subequalis W. H. Dall, 1908
Ref. Bernard, 1983 p 58

luticola (A. Valenciennes, 1846)
(3-4-3-1-3-3-3-6-0-6-0-0-0)
Pacific Sphenia
Ref. Amer. Fish. Soc., 1988 p 45
Syn. Corbula (Corbula) luticola A. Valenciennes in A. Petit-Thouars, 1846;
Cuspidaria nana I. S. Oldroyd, 1918;
Sphenia fragilis P. P. Carpenter, 1857;
Sphenia globula W. H. Dall, 1919;
Sphenia pacificensis A. G. L. De Folin, 1867;
Sphenia pholadidea W. H. Dall, 1916;
Sphenia trunculus W. H. Dall, 1916;
Tyleria fragilis H. & A. Adams, 1854
Ref. Bernard, 1983 p 58

ovoidea P. P. Carpenter, 1864
(3-4-3-1-3-3-3-6-0-7-0-0-0)
Ovoid Sphenia
Ref. Amer. Fish. Soc., 1988 p 45
Bernard, 1983 p 58

pacificensis A. G. L. De Folin, 1867
(3-4-3-1-3-3-3-6-0-8-0-0-0)
[=Sphenia luticola (A. Valenciennes, 1846)]
Ref. Bernard, 1983 p 58

pholadidea W. H. Dall, 1916
(3-4-3-1-3-3-3-6-0-9-0-0-0)
[=Sphenia luticola (A. Valenciennes, 1846)]
Ref. Bernard, 1983 p 58

subequalis W. H. Dall, 1908
(3-4-3-1-3-3-3-6-0-10-0-0-0)
[=Sphenia hatcheri H. A. Pilsbry, 1899]
Ref. Bernard, 1983 p 58

swainsoni W. H. Turton, 1822
(3-4-3-1-3-3-3-6-0-11-0-0-0)
[=Mya (Mya) truncata C. v Linne, 1758]
Ref. Bernard, 1983 p 57

trunculus W. H. Dall, 1916
(3-4-3-1-3-3-3-6-0-12-0-0-0)
[=Sphenia luticola (A. Valenciennes, 1846)]
Ref. Bernard, 1983 p 58

tumida J. E. Lewis, 1968
(3-4-3-1-3-3-3-6-0-13-0-0-0)
Tumid Sphenia
Ref. Amer. Fish. Soc., 1988 p 45