Genus Oligyra [Olygyra] T. Say, 1818

(5-4-1-3-2-3-0-5-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 58
[see under Family: HELICINIDAE; Subfamily: HELICININAE]

orbiculata T. Say, 1818
(5-4-1-3-2-3-0-5-0-1-0-0-0)
Globular Drop
Ref. Amer. Fish. Soc., 1988 p 58