Genus Geukensia L. Van der Poel, 1959

(3-7-5-0-1-2-3-11-0-0-0-0-0)
Ref. Abbott & Dance, 1982 p 298
Amer. Fish. Soc., 1988 p 23
Bernard, 1983 p 19
Vokes, 1980 p 24
Wagner, 1984 p 54
Syn. Arcuatula Soot-Ryen, 1955, not F. P. Jousseaume in E. Lamy, 1919
Ref. Abbott, 1974 p 437
Vaught, 1989 p 116

demissa [demissus] (L. W. Dillwyn, 1817) [T]
(3-7-5-0-1-2-3-11-0-1-0-0-0)
Atlantic Ribbed Mussel, Ribbed Mussel
Ref. Amer. Fish. Soc., 1988 p 23
Syn. Mytilus (Mytilus) plicatulus J. B. P. A. de Lamarck, 1819
Ref. Abbott, 1974 p 437 d c
Syn. Geukensia plicatulus J. B. P. A. de Lamarck, 1819
Ref. Abbott & Dance, 1982 p 298 c
Syn. Modiola plicatula J. B. P. A. de Lamarck, 1819;
Modiola semicostata T. A. Conrad, 1837;
Mytilus (Mytilus) demissus ex D. C. Solander, ms, L. W. Dillwyn, 1817
Ref. Bernard, 1983 p 19
Syn. Mytilus (Mytilus) demissus L. W. Dillwyn, 1817
Ref. Wagner, 1984 p 54 bw

demissa (L. W. Dillwyn, 1817) `
(3-7-5-0-1-2-3-11-0-1-1-0-0)

granosissima (G. B. Sowerby, 1914)
(3-7-5-0-1-2-3-11-0-1-2-0-0)
Ref. Abbott, 1974 p 437

plicatulus J. B. P. A. de Lamarck, 1819
(3-7-5-0-1-2-3-11-0-2-0-0-0)
[=Geukensia demissa (L. W. Dillwyn, 1817)]
Ref. Abbott & Dance, 1982 p 298