Genus Ostreola T. A. Monterosato, 1884 [f]

(3-7-6-1-1-1-6-37-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 28
Vokes, 1980 p 66

conchaphila (P. P. Carpenter, 1857)
(3-7-6-1-1-1-6-37-0-1-0-0-0)
Olympia Oyster
Ref. Amer. Fish. Soc., 1988 p 28

equestris (T. Say, 1834)
(3-7-6-1-1-1-6-37-0-2-0-0-0)
Crested Oyster
Ref. Amer. Fish. Soc., 1988 p 28