Subgenus (Dione) J. E. Gray, 1847 [not Hubner, 1819]

(3-4-4-0-26-7-11-77-4-0-0-0-0)
[=(Hysteroconcha) W. H. Dall, 1902]
Ref. Vaught, 1989 p 136
[see also as Genus]