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| Cylindrical Whorl Snail (Vertigo binneyana) |
| syn. - |
| distribution: Canada: Alberta (?); British Columbia; Manitoba; Ontario USA: Iowa; Kansas; Montana; New Mexico |
| local name: - |
| size: ca. 0,2 cm (shell
heigth) extinction date: (?) |
| The Cylindrical Whorl Snail,
which historically occurred in Iowa, Kansas, Montana, and New Mexico / USA
as well as in British
Columbia, Manitoba, and Ontario / Canada, seems to be extinct nowadays. The species occurrred in grass thatch and in the leaf litter of oak-aspen mixed woodlands, where it probably fed on vegetable detritus. ~~~~~~~~~~~~~~~~~~~~~ All recent findings appeared / appear later as misidentified, other species. There is, however, a certain chance, that extant populations may still exist in the Canadian Alberta. |
 left:Cylindrical Whorl Snail (Vertigo binneyana) Depiction from: 'G. W. Tryon; H. A. Pilsbry: Manual of Conchology. Second series: Pulmonata, Vol. 25, 1918-1920' http://www.biodiversitylibrary.org |
| References: - Jeffrey C. Nekola; Brian F. Coles: Pupillid land snails of eastern North America. Amer. Malac. Bull. 28: 29-57. 2010 |