MolluscaBase name details
Valvata sincera var. helicoidea Dall, 1905
1435444 (urn:lsid:marinespecies.org:taxname:1435444)
unaccepted > superseded rank
Variety
recent only
(of Valvata lewisi var. helicoidea 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): 123-124, pl. 2, figs 1, 2 [details]
page(s): 123-124, pl. 2, figs 1, 2 [details]
MolluscaBase eds. (2021). MolluscaBase. Valvata sincera var. helicoidea Dall, 1905. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=1435444 on 2025-09-11
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The webpage text is licensed under a Creative Commons
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original description
(of Valvata lewisi var. helicoidea 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): 123-124, pl. 2, figs 1, 2 [details]
page(s): 123-124, pl. 2, figs 1, 2 [details]
