Planorbella anceps (Menke, 1830) Helisoma anceps,[2] common name the two-ridge rams-horn, is a species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.

[3] This species is distributed from Mexico, through the Central United States, to central Canada.

[2] "Planorbella anceps".

National Center for Biotechnology Information (NCBI).

This Planorbidae-related article is a stub.