Subgenus (Paradonax) M. Cossmann & Peyrot, 1910 M. Cossmann in M. Cossmann & Peyrot, 1911

(3-4-4-0-24-2-0-18-12-0-0-0-0)
Ref. Bernard, 1983 p 49
Lindner, 1977 p 112
Vaught, 1989 p 131
[see also as Genus]

californicus T. A. Conrad, 1837
(3-4-4-0-24-2-0-18-12-1-0-0-0)
California Donax
Ref. Abbott & Dance, 1982 p 345 c
Syn. Donax (Donax) californicus T. A. Conrad, 1837;
Donax (Donax) flexuosus authors [not A. A. Gould, 1853];
Donax (Donax) navicula S. C. T. Hanley, 1845
Ref. Bernard, 1983 p 49

gracilis S. C. T. Hanley, 1845
(3-4-4-0-24-2-0-18-12-2-0-0-0)
Syn. Donax (Donax) gracilis S. C. T. Hanley, 1845
Ref. Bernard, 1983 p 49