Banff Springs snail

Banff Springs snail
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Superorder: Hygrophila
Family: Physidae
Genus: Physella
Species:
P. johnsoni
Binomial name
Physella johnsoni
(Clench, 1926)

The Banff Springs snail (Physella johnsoni) is a species of small air-breathing freshwater snail in the family Physidae.

Based on molecular research, it appears that Physella johnsoni separated out as a species from Physella gyrina about 10,000 years ago.