Genus Tumbeziconcha H. A. Pilsbry & A. A. Olsson, 1935

(3-4-4-0-21-3-2-104-0-0-0-0-0)
Ref. Bernard, 1983 p 39
Vaught, 1989 p 130
Vokes, 1980 p 137
[see also as Subgenus under Genus Mactra]

thracioides (A. Adams & L. A. Reeve, 1848)
(3-4-4-0-21-3-2-104-0-1-0-0-0)
Syn. Mactra (Mactra) thracioides A. Adams & L. A. Reeve, 1848
Ref. Bernard, 1983 p 39