Choanomphalus amauronius
# Choanomphalus amauronius

Choanomphalus amauronius is a species of freshwater air-breathing snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails, or planorbids.

## Subspecies

* Choanomphalus amauronius amauronius Bourguignat, 1860
* Choanomphalus amauronius angulatus (B. Dybowski & Grochmalicki, 1925)
* Choanomphalus amauronius westerlundianus Lindholm, 1909 The subspecific name westerlundianus is in honor of Swedish malacologist Carl Agardh Westerlund.

## Distribution

This species is found in Lake Baikal, Russia and in Angara River.

## Description

The width of the shell is 5–6 mm. The height of the shell is 4 mm.

| Apical view of the shell. | Umbilical view of the shell. |
| - | - |
