original description(ofPlanorbis (Torquis) Dall, 1905)Dall, W. H. (1905). <i>Land and fresh water mollusks of Alaska and adjoining regions</i>. in: <i>Alaska. Harriman Alaska Expedition with cooperation of Washington Academy of Sciences</i>. vol. 13: i-vii + 1-171. , available online athttps://www.biodiversitylibrary.org/page/21386445 page(s): 83, 86 [details]
taxonomy sourceJung, Y. & Burch, J. B. (1992). A taxonomic review of the <i>Gyraulus</i> subgenus <i>Torquis</i>. <em>Walkerana.</em> 5 (13): 1-18.[details] Available for editors [request]
basis of recordMeier-Brook, C. (1983). Taxonomic studies on <i>Gyraulus</i> (Gastropoda: Planorbidae). <em>Malacologia.</em> 24 (1/2): 1-113. Ann Arbor [29 September]., available online athttps://www.biodiversitylibrary.org/page/13108482[details] Available for editors [request]