original description
(of Helix hirsuta Say, 1817) Say, T. (1817). Descriptions of seven species of American fresh water and land shells, not noticed in the systems. <em>Journal of the Academy of Natural Sciences.</em> Philadelphia 1(1): 13–16, 17–18., available online at http://archive.org/stream/journalofacademy01acaduoft#page/n21/mode/2up
page(s): 17 [details]
original description
(of Stenotrema burringtoni Grimm, 1971) Grimm, F. W. (1971). Two new <i>Stenotrema</i>, with notes on <i>S. hirsutum</i> and <i>S. barbatum</i>. <em>The Nautilus.</em> 85(1): 12-17, fig. 1A-D., available online at https://www.biodiversitylibrary.org/page/8516108
page(s): 14-15, fig. 1D [details]
original description
(of Helix porcina Say, 1824) Say, T. (1824). Class Mollusca. In: Narrative of an expedition to the source of St. Peter's River, Lake Winnepeek, Lake of the Woods, &c. &c. performed in the year 1823, by order of The Hon. J.C. Calhoun, Secretary of War, under the command of Stephen H. Long, Major U. S. T. E. compiled from the notes of Major Long, Messrs Say, Keating, and Calhoun, by William H. Keating, A. M. &c. H.C. Carey & I. Lea, Philadelphia. 2: 256-266, plates 14-15, available online at http://biodiversitylibrary.org/page/13640689
page(s): 257, pl. 15, fig. 2 [details]
original description
(of Polygyra hirsuta nana H. G. Richards, 1934) Richards, H. G. (1934). A list of the mollusks of the District of Columbia and vicinity. The American Midland Naturalist, 15(1): 85-88.
page(s): 86 [details]
original description
(of Polygyra hirsuta var. yarmouthensis F. C. Baker, 1927) Baker, F. C. (1927). Descriptions of new forms of Pleistocene land mollusks from Illinois with remarks on other species. <em>The Nautilus.</em> 40(4): 114-120., available online at https://www.biodiversitylibrary.org/page/8523251
page(s): 115 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
additional source
Grimm, F. W. (1971). Two new <i>Stenotrema</i>, with notes on <i>S. hirsutum</i> and <i>S. barbatum</i>. <em>The Nautilus.</em> 85(1): 12-17, fig. 1A-D., available online at https://www.biodiversitylibrary.org/page/8516108
page(s): 15-16, fig. 1C [details]
additional source
Lee, H. G. (2010). Gettleman key to probe of major reversals. <em>American Conchologist.</em> 38(4): 6-11., available online at https://conchologistsofamerica.org/wp-content/uploads/2019/01/38-dec-2010.pdf
page(s): 9 [details]
From editor or global species database