MolluscaBase name details
original description
(of Ancylus fragilis Tryon, 1863) Tryon, G. W. (1863). Descriptions of new species of fresh water Mollusca, belonging to the families Amnicolidae, Valvatidae and Limnaeidae; inhabiting California. <em>Proceedings of the Academy of Natural Sciences, Philadelphia.</em> 15: 147-150., available online at https://www.biodiversitylibrary.org/page/1958411 page(s): 149, pl. 1 fig. 15 [details]
context source (Schelde)
Soors, J. ; Speybroek, J. (INBO). [details]
basis of record
Johnson, P. D.; Bogan, A. E.; Brown, K. M.; Burkhead, N. M.; Cordeiro, J. R.; Garner, J. T.; Hartfield, P. D.; Lepitzki, D. A. W.; Mackie, G. L.; Tarpley, T. A.; Tiemann, J. S.; Whelan, N. V.; Strong, E. E. (2013). Conservation status of freshwater gastropods of Canada and the United States. <em>Fisheries.</em> 38(6): 247-282., available online at http://www.tandfonline.com/doi/abs/10.1080/03632415.2013.785396 [details] Available for editors [request]
additional source
Jokinen, E. H. (1978). Habitats of two freshwater limpets (<i>Ferrissia</i>: Ancylidae) from New England. <em>The Nautilus.</em> 92(4): 156-160., available online at https://www.biodiversitylibrary.org/page/8274106 [details]
From editor or global species database
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