Subgenus (Oligyra) T. Say, 1818

(5-4-1-3-1-1-0-6-2-0-0-0-0)
Ref. Abbott, 1989 p 34

orbiculata (T. Say, 1818) [T]
(5-4-1-3-1-1-0-6-2-1-0-0-0)
Little Orb Helicina
Ref. Abbott, 1989 p 34 c