MolluscaBase taxon details
original description
(of Helix labiosa A. Gould, 1846) Gould, A.A. (1846). New species of Helix, from the Shells of the Exploring Expedition. Proceedings of the Boston Society of Natural History, 2: 165-167. Boston.
page(s): 165 [details]
original description
(of Helix columbiana I. Lea, 1838) Lea, I. (1838). Description of new freshwater and land shells. <em>Transactions of the American Philosophical Society.</em> new ser., 6: 1-154, plates 1-24., available online at https://www.biodiversitylibrary.org/page/26881423
page(s): 89, pl. 23, fig. 75 [details]
original description
(of Vespericola columbiana latilabrum Pilsbry, 1940) Pilsbry, H. A. (1940). Land Mollusca of North America (north of Mexico). Volume I Part 2. <em>The Academy of Natural Sciences of Philadelphia Monographs.</em> 3: i-vii, 575-994, i-ix. Philadelphia [1 August].
page(s): 899, fig. 515 [details]
original description
(of Polygyra columbiana var. santacruzensis 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 at https://www.biodiversitylibrary.org/page/21386445
page(s): 24 [details]
original description
(of Polygyra columbiana depressa Pilsbry & J. Henderson, 1936) Pilsbry, H. A. & Henderson, J. (1936). <i>Polygyra columbiana depressa</i>, new subspecies, from Oregon. <em>The Nautilus.</em> 49(4): 134, pl. 7, fig. 2., available online at https://www.biodiversitylibrary.org/page/8527777 [details]
basis of record
Emberton, K. C. (1995). When shells do not tell: 145 million years of evolution in North America's polygyrid land snails, with a revision and conservation priorities. <em>Malacologia.</em> 37(1): 69-110. Ann Arbor., available online at https://www.biodiversitylibrary.org/page/13113494
page(s): 86 [details]