| Physella gyrina | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata clade Hygrophila |
| Superfamily: | Planorboidea |
| Family: | Physidae |
| Subfamily: | Physinae |
| Tribe: | Physellini |
| Genus: | Physella |
| Species: | P. gyrina |
| Binomial name | |
| Physella gyrina (Say, 1821)[1] |
|
| Synonyms | |
|
Physa gyrina Say, 1821 |
|
Physella gyrina common name the "tadpole physa", is a species of small, left-handed or sinistral, air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Physidae.
Contents |
Snails in the family Physidae have shells that are sinistral, which means that if you hold the shell such that the spire is pointing up, and the aperture is facing you, the aperture is on the left-hand side.
The shells of Physella species have a long and large aperture, a pointed spire, and no operculum. The shells are thin and corneous and rather transparent.
This species is known to occur in: