Pyrgulopsis archimedis
Species of gastropod
From Wikipedia, the free encyclopedia
Pyrgulopsis archimedis, commonly known as the archimedes pyrg, is a species of small freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
| Pyrgulopsis archimedis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Genus: | Pyrgulopsis |
| Species: | P. archimedis |
| Binomial name | |
| Pyrgulopsis archimedis (Berry, 1947) | |
This species' natural habitat is rivers and lakes. It is endemic to the Upper Klamath Lake and the uppermost portion of the Link River near Algoma, Oregon, United States.[2]
Description
Pyrgulopsis archimedis is a small snail that has a height of 4–6 millimetres (0.16–0.24 in) and a conical shell. Its differentiated from other Pyrgulopsis in that its penial filament has a medium lobe and medium filament with the penial ornament consisting of a short, transverse penial gland, short, transverse terminal gland, and stalked ventral gland.[2]
