Choanomphalus maacki


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

Subspecies

Choanomphalus maacki maacki Gerstfeldt, 1859Choanomphalus maacki andrussowianus Choanomphalus maacki elatior Lindholm, 1909
However, IUCN Red List 2013 lists these three as synonyms.

Distribution

This species is found in Lake Baikal, Russia. Its natural habitats are freshwater lakes and river mouths.

Description

The width of the shell is 5–6 mm. The height of the shell is 2.5–3.0 mm.