Topic summary
Balea perversa
Balea perversa, also known as the wall snail or tree snail, is a species of air-breathing land snail, a terrestrialpulmonategastropodmollusk in the family Clausiliidae, the door snails. The shell of this species is left-handed in coiling and it looks like a juvenile of a clausiliid.
Balea perversa (as its synonymous name Pupa fragilis) is the type species of the genus Balea.