Family Physidae
Physidae is a family in the order . Browse 2 named species recorded in this family, or open an individual profile for its available identification and natural-history information.
Species in Physidae (2)
Moss Bladder Snail
Aplexa hypnorum
The moss bladder snail shell may vary from pale yellow-brown to a darker red-brown, and is a highly polished shell with aperture on the left side (sinistral) and a tall, sharp spire with nearly flat sutures. The shell may be from 4 to 12 mm in height
American Bladder Snail
Physella acuta
Up to 18mm long with a pointed turret and large flared mouth which joins the main shell at close to a right angle. As with other Physa species it is sinistral Physa fontinalis has a much less pointed shell and the mouth joins the main shell at an acu