Donax (Chion) caelatus rothi Coan, 1983 accepted as Donax rothi Coan, 1983 (original description)
Donax (Chion) punctatostriatus Hanley, 1843 represented as Donax punctatostriatus Hanley, 1843 (subsequent type designation)
Donax (Machaerodonax) Römer, 1870 represented as Donax Linnaeus, 1758 (additional source)
Donax (Serrula) carpenteri H. Adams & A. Adams, 1856 accepted as Donax semistriatus Poli, 1795 (source of synonymy)
Donax dentifer Hanley, 1843 (subsequent type designation)
Donax marincovichi Coan, 1983 accepted as Donax obesulus Reeve, 1854 (original description)
Donax sowerbyi Bertin, 1881 accepted as Donax punctatostriatus Hanley, 1843 (subsequent type designation)

 Type locality

 for Donax semistriatus P. P. Carpenter, 1856

'in Sinu Californiensi' [erroneous fide Coan (1983: 294). [details]