Bullastra lessoni


Bullastra lessoni, the southern bubble pond snail, is a species of gastropod belonging to the family Lymnaeidae.

Description

The length of the shell attains 27 mm, its diameter 20 mm.
The shell has an ovate-ventricose shape. It is globose, translucent, exceedingly fragile, somewhat striated, greenish.The spire is short and acute. The large aperture is oval. The outer lip is simple and acute. The columella is twisted.

Distribution

It is found in Australia amongst aquatic plants in slow flowing rivers, ponds, dams and billabongs. A globose, thin shelled snail, sometimes seeing floating foot-uppermost on the surface of freshwater. Its food is algae and detritus.