original description
Lea, H.C. (1842). Descriptions of eight new species of shells native to the United States. <em>The American Journal of Science and Arts.</em> 42: 106-112., available online at https://www.biodiversitylibrary.org/page/30869140
page(s): 109-110; pl. 1, fig. 5 [details]
original description
(of Carychium exile var. canadense G. H. Clapp, 1906) Clapp, G. H. (1906). Notes on <i>Carychium</i> and description of a new variety. <em>The Nautilus.</em> 19(12): 138-140, pl. 8., available online at https://www.biodiversitylibrary.org/page/1755719
page(s): 139, pl. 8, figs. 1-2, 6-7 [details]
additional source
Clapp, G. H. (1906). Notes on <i>Carychium</i> and description of a new variety. <em>The Nautilus.</em> 19(12): 138-140, pl. 8., available online at https://www.biodiversitylibrary.org/page/1755719
page(s): pl. 8, figs. 3-5 [details]
additional source
Pilsbry, H. A. (1894). The American species of <i>Carychium</i>. <em>The Nautilus.</em> 8(6): 61-63, figs. 1-16., available online at https://www.biodiversitylibrary.org/page/43044657
page(s): 63, figs. 10-14 [details]
additional source
Pilsbry, H. A. (1896). Note on <i>Carychium exile</i> (C. B. Adams). <em>The Nautilus.</em> 10(1): 12., available online at https://www.biodiversitylibrary.org/page/1819014 [details]
additional source
Brooks, S. T. (1936). West Virginian Carychiidae in the Carnegie Museum collection - 1936. <em>The Nautilus.</em> 49(4): 115., available online at https://www.biodiversitylibrary.org/page/8527758 [details]
additional source
Hubricht, L. (1963). <i>Carychium exile</i> and <i>Carychium exiguum</i>. <em>The Nautilus.</em> 76(3): 108-109., available online at https://www.biodiversitylibrary.org/page/8514554 [details]
From editor or global species database
Type locality Under dead leaves and mould, on the Wisshiccon Creek, near Philadelphia [Pennsylvania] [details]