Genus Eastonia J. E. Gray, 1853

(3-4-4-0-21-3-1-6-0-0-0-0-0)
Ref. Abbott & Dance, 1982 p 336
Lindner, 1977 p 111
Vaught, 1989 p 130
Vokes, 1980 p 137

rugosa (Helbling, 1779)
(3-4-4-0-21-3-1-6-0-1-0-0-0)
Rugose Mactra
Ref. Abbott & Dance, 1982 p 333 c