original description
Gould, A. A. (1847). Descriptions of new shells, collected by the United States Exploring Expedition. <em>Proceedings of the Boston Society of Natural History.</em> 2: 196-198, 200-203, 204-208 [March]; 209, 210-212, 214-215, 222-224 [June]; 225, 237-239 [July]; 251-252 [December]., available online at https://www.biodiversitylibrary.org/page/9490880
page(s): 210 [details]
basis of record
Hubendick, B. (1970). Studies on Ancylidae. The Palearctic and Oriental species and formgroups. Acta Regiae Societatis Scientiarum et Litterarum Gothoburgensis, Zoologia, 5: 1-52. Göteborg [9 February].
page(s): 10 [details]
basis of record
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017. [details]
From editor or global species database
Type locality Portugal, Madeira Island, in mountain streams [details]