Moapa pebblesnail
| Moapa pebblesnail | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Caenogastropoda clade Hypsogastropoda |
| Superfamily: | Rissooidea |
| Family: | Hydrobiidae |
| Genus: | Pyrgulopsis |
| Species: | P. avernalis |
| Binomial name | |
| Pyrgulopsis avernalis Pilsbry, 1935 | |
| Synonyms | |
|
Fluminicola avernalis | |
The Moapa pebblesnail also known as the Muddy Valley turban snail, scientific name Pyrgulopsis avernalis, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
The natural habitat of this species is springs[1], and it is currently threatened by habitat loss. This species is endemic to the Moapa Valley, Nevada, United States[1] and the common name refers to the Moapa River in Nevada.
Description
P. avernalis is a small snail that has a height of 2.4–4.3 millimetres (0.094–0.169 in) and ovate conical shell. Its differentiated from other Pyrgulopsis in that its penial filament has a small lobe and large filament with the penial ornament consisting of a small terminal gland, a gland along the outer edge of the penial lobe and a ventral gland.[1]
Genus transfer
When originally described in 1935, it was assigned to the genus Fluminicola. In 1994, it was transferred to the genus Pyrgulopsis.[1]
References
- Mollusc Specialist Group 2000. Pyrgulopsis avernalis. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.