About Pupa affinis (A.Adams, 1855)
The scientific name of this species is Pupa affinis (A.Adams, 1855). Its shell reaches 15 mm in length, and is most commonly white, beige, or brown; it may have black markings, or lack them entirely. The shell has an ovate (egg-shaped) form with an elevated spire. The columella, which is the central axis of the shell, bears a large double fold.