Micromenetus dilatatus avus (Pilsbry, 1905) Keeled Bugle Sprite

Micromenetus dilatatus avus (Pilsbry, 1905) Keeled Bugle Sprite
Gyraulus parvus (Say, 1817) Ash Gyro Micromenetus floridensis (F. C. Baker, 1945) Penny Sprite

Gyraulus parvus (Say, 1817) Ash Gyro

Micromenetus floridensis (F. C. Baker, 1945) Penny Sprite
From: An identification manual for the freshwater snails of Florida by Fred G. Thompson, University of Florida [http://www.flmnh.ufl.edu/malacology/fl-snail/snails1.htm]