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Anisus septemgyratus

Anisus septemgyratus is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.

Taxonomy
Glöer (2002) considered Anisus septemgyratus (Rossmässler, 1835) as a junior synonym of Anisus leucostoma (Millet, 1813). Later Glöer & Meier-Brook (2008) used name Anisus septemgyratus again. Horsák et al. (2013) consider Anisus calculiformis (Sandberger, 1874) as a synonym of Anisus septemgyratus. ==Distribution==
Distribution
This species occurs in countries and islands including: • Czech RepublicSlovakiaPoland • British Isles ==Description==
Description
The number of prostate diverticles ranges from 30 to more than 50. ==References==
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