MolluscaBase taxon details
Monadenia fidelis fidelis (J. E. Gray, 1834)
1352863 (urn:lsid:marinespecies.org:taxname:1352863)
accepted
Subspecies
Helix (Epiphragmophora) oregonensis I. Lea, 1838 · unaccepted (junior synonym)
Helix nuttalliana I. Lea, 1838 · unaccepted > junior subjective synonym
Helix oregonensis I. Lea, 1838 · unaccepted > junior subjective synonym
Monadenia fidelis columbiana Pilsbry, 1939 · unaccepted
Monadenia semialba J. Henderson, 1929 · unaccepted > junior subjective synonym
(of Helix fidelis J. E. Gray, 1834) Gray, J. E. (1834). [Exhibition of an extensive series of land and freshwater shells regarded as hitherto undescribed]. <em>Proceedings of the Zoological Society of London.</em> (1834) 2: 63-68., available online at https://biodiversitylibrary.org/page/12859659
page(s): 67 [details]
page(s): 67 [details]
MolluscaBase eds. (2025). MolluscaBase. Monadenia fidelis fidelis (J. E. Gray, 1834). Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1352863 on 2025-06-21
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original description
(of Helix fidelis J. E. Gray, 1834) Gray, J. E. (1834). [Exhibition of an extensive series of land and freshwater shells regarded as hitherto undescribed]. <em>Proceedings of the Zoological Society of London.</em> (1834) 2: 63-68., available online at https://biodiversitylibrary.org/page/12859659
page(s): 67 [details]
original description (of Helix nuttalliana 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): 88, pl. 23, fig. 74 [details]
original description (of Helix oregonensis 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): 100, pl. 23, fig. 85 [details]
original description (of Monadenia semialba J. Henderson, 1929) Henderson, J. (1929). Some new forms of non-marine Mollusca from Oregon and Washington. <em>The Nautilus.</em> 42(3): 80-82., available online at https://www.biodiversitylibrary.org/page/8518859
page(s): 80 [details]
original description (of Monadenia fidelis columbiana Pilsbry, 1939) Pilsbry, H. A. (1939). Land Mollusca of North America (north of Mexico). Volume I Part 1. <em>The Academy of Natural Sciences of Philadelphia Monographs.</em> 3: i-xvii, 1-573, i-ix. Philadelphia [6 December].
page(s): 43, figs. 16h [details] Available for editors
[request]
basis of record InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
page(s): 67 [details]
original description (of Helix nuttalliana 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): 88, pl. 23, fig. 74 [details]
original description (of Helix oregonensis 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): 100, pl. 23, fig. 85 [details]
original description (of Monadenia semialba J. Henderson, 1929) Henderson, J. (1929). Some new forms of non-marine Mollusca from Oregon and Washington. <em>The Nautilus.</em> 42(3): 80-82., available online at https://www.biodiversitylibrary.org/page/8518859
page(s): 80 [details]
original description (of Monadenia fidelis columbiana Pilsbry, 1939) Pilsbry, H. A. (1939). Land Mollusca of North America (north of Mexico). Volume I Part 1. <em>The Academy of Natural Sciences of Philadelphia Monographs.</em> 3: i-xvii, 1-573, i-ix. Philadelphia [6 December].
page(s): 43, figs. 16h [details] Available for editors
[request]basis of record InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
Present Inaccurate Introduced: alien Containing type locality
