| Corded purg | |
|---|---|
| |
| Drawing of lateral view of the shell of Pyrgulopsis nevadensis. | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Genus: | Pyrgulopsis |
| Species: | †P. nevadensis
|
| Binomial name | |
| †Pyrgulopsis nevadensis | |
| Synonyms | |
| |
The corded purg, scientific name Pyrgulopsis nevadensis, is an extinct species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.
Pyrgulopsis nevadensis is the type species of the genus Pyrgulopsis.[3]
- ^ Mollusc Specialist Group (2000). "Pyrgulopsis nevadensis". IUCN Red List of Threatened Species. 2000: e.T40048A10311237. doi:10.2305/IUCN.UK.2000.RLTS.T40048A10311237.en. Retrieved 16 November 2021.
- ^ Stearns R. E. C. 1883. Proc. Phila. Acad. Nat. Sci.
- ^ Call R. E. & Pilsbry H. A. 1886. On Pyrgulopsis, a new genus of rissoid mollusk, with description of two new forms. Proceeding Davenport Academy of Natural Sciences, volume V., page 9-14. Plate II., figures 1-10.