Pyrgulopsis blainica
Pyrgulopsis blainica, is a species of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
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| Species: | P. blainica |
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| Pyrgulopsis blainica Hershler, Liu & Gustafson, 2008 | |
This species is endemic to Blaine Spring near Varney, Montana, United States. Its natural habitat is springs.
Description
P. blainica is a small snail that has a height of 3.3–4.6 millimetres (0.13–0.18 in) and ovate conical shell of dark brown coloration. 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.
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References
- Hershler, Robert; Liu, Hsiu-Ping; Gustafson, Daniel L. (November 2008). "A second species of Pyrgulopsis (Hydrobiidae) from the Missouri River basin, with molecular evidence supporting faunal origin through Pliocene stream capture across the northern continental divide". Journal of Molluscan Studies. 74 (4): 403–413. doi:10.1093/mollus/eyn028. – via EBSCO's Academic Search Complete (subscription required)
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