Pomacea columellaris
# Pomacea columellaris

Pomacea columellaris is a South American species of freshwater snail in the apple snail family, Ampullariidae.

## Taxonomy

Pomacea columellaris was originally described as Ampullaria columellaris by Augustus Addison Gould in 1848, based on a holotype shell collected during the United States Exploring Expedition from 1838-1842. They were named for their notable columella, comparable to those of Helix land snails. In 1904, Dall proposed a section or subgenus of Ampullaria (later treated as synonymous with Pomacea) called Limnopomus, with A. columellaris as the type species. After 1991, Limnopomus was also considered synonymous with Pomacea.

## Shell description

The species has a heavy, oval shell with a sharp spire. Its operculum is corneous and able to retract inside the shell's aperture. They lack an umbilicus and are often yellow in color.

## Distribution

P. columellaris is found in rivers in the highlands of Venezuela, Colombia, Ecuador (Pastaza Province), and Peru.

