MolluscaBase name details
original description
(of Ancylus borealis E. S. Morse, 1864) Morse, E. S. (1864). Observations on the terrestrial Pulmonifera of Maine, including a catalogue of all the species of terrestrial and fluviatile Mollusca known to inhabit the state. <em>Journal of the Portland Society of Natural History.</em> 1(1): 1-63, pls 1-10., available online at https://www.biodiversitylibrary.org/page/16070837
page(s): 45, figs. 103-104 [details]
basis of record
Walker, B. (1904). Notes on eastern North American Ancylii. III. <em>The Nautilus.</em> 18(7): 75-83, pls. 5-6., available online at https://www.biodiversitylibrary.org/page/1816973
page(s): 80-81, pl. 6, figs. 14-16 [details]