Subgenus (Swiftopecten) L. G. Hertlein, 1936

(3-7-8-3-4-10-G4-0-20-16-0-0-0-0)
Ref. Lindner, 1977 p 103
[see also as Genus]

swifti (M. Bernardi, 1858)
(3-7-8-3-4-10-G4-0-20-16-1-0-0-0)
Ref. Lindner, 1977 pl 55 c