MolluscaBase taxon details
Polygyra septemvolva Say, 1818
1351861 (urn:lsid:marinespecies.org:taxname:1351861)
accepted
Species
Helix planorbula Lamarck, 1822 · unaccepted > junior subjective synonym
Helix septemvolva (Say, 1818) · unaccepted > superseded combination
Helix volvoxis L. Pfeiffer, 1846 · unaccepted > junior subjective synonym
Polygyra cereolus var. sanctijohannis Pilsbry, 1895 · unaccepted > junior subjective synonym
Polygyra septemvolva volvoxis (L. Pfeiffer, 1846) · unaccepted > junior subjective synonym
Polygyra septemvolvis Say, 1818 · unaccepted > incorrect grammatical agreement of specific epithet
- Variety Polygyra septemvolva var. floridana Hemphill, 1892 accepted as Polygyra cereolus (Megerle von Mühlfeld, 1818) (unaccepted > junior subjective synonym)
- Subspecies Polygyra septemvolva volvoxis (L. Pfeiffer, 1846) accepted as Polygyra septemvolva Say, 1818 (unaccepted > junior subjective synonym)
Say T. (1818). Account of two new genera, and several new species, of fresh water and land snails. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 1: 276-284., available online at http://biodiversitylibrary.org/page/24680546
page(s): 278 [details]
page(s): 278 [details]
MolluscaBase eds. (2025). MolluscaBase. Polygyra septemvolva Say, 1818. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1351861 on 2025-09-10
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original description
Say T. (1818). Account of two new genera, and several new species, of fresh water and land snails. <em>Journal of the Academy of Natural Sciences of Philadelphia.</em> 1: 276-284., available online at http://biodiversitylibrary.org/page/24680546
page(s): 278 [details]
original description (of Helix volvoxis L. Pfeiffer, 1846) Pfeiffer, L. (1846). Symbolae ad historiam Heliceorum. Sectio tertia. 1–100. Cassellis: Th. Fischer [< 26 August]., available online at https://biodiversitylibrary.org/page/12254325
page(s): 80 [details]
original description (of Helix planorbula Lamarck, 1822) Lamarck, [J.-B. M.] de. (1822). <i>Histoire naturelle des animaux sans vertèbres</i>. Tome sixième, 2me partie, 232 pp. Paris, published by the author. , available online at http://biodiversitylibrary.org/page/13181853
page(s): 89 [details]
original description (of Polygyra cereolus var. sanctijohannis Pilsbry, 1895) Pilsbry, H. A. (1895). <i>Polygyra cereolus sanctijohannis</i> n. var. <em>The Nautilus.</em> 9(5): 56., available online at https://www.biodiversitylibrary.org/page/1731401
page(s): 56 [details]
additional source Beck, H. (1837-1838). <i>Index molluscorum praesentis aevi musei principis augustissimi Christiani Frederici</i>. 124 pp. Hafniae [Copenhagen]. Pp. 1-100 [1837]; 101-124 [1838]; Appendix: 1-8 [June 1837]. , available online at https://biodiversitylibrary.org/page/32058074
page(s): 23 [details]
additional source 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): 89 [details]
additional source Rhoads, S. N. (1899). Annotated list of land and fresh-water shells recently collected in the vicinity of Miami, Florida. <em>The Nautilus.</em> 13(4): 43-48., available online at https://www.biodiversitylibrary.org/page/42799943
page(s): 44 [details]
additional source Lee, H. G. (2010). Gettleman key to probe of major reversals. <em>American Conchologist.</em> 38(4): 6-11., available online at https://conchologistsofamerica.org/wp-content/uploads/2019/01/38-dec-2010.pdf
page(s): 9, 11, fig. 11 [details]
additional source Pilsbry, H. A. (1938). The type of <i>Polygyra</i> Say. <em>The Nautilus.</em> 52(1): 22-24., available online at https://www.biodiversitylibrary.org/page/8284522 [details]
additional source Webb, G. R. (1964). Freezing versus <i>Polygyra septemvolva</i> Say. <em>The Nautilus.</em> 78(1): 31., available online at https://www.biodiversitylibrary.org/page/8521326 [details]
additional source Dundee, D. S. & Hermann, P. W. (1965). Malacological problems: 1. <em>The Nautilus.</em> 78(3): 81-83., available online at https://www.biodiversitylibrary.org/page/8521384 [details]
page(s): 278 [details]
original description (of Helix volvoxis L. Pfeiffer, 1846) Pfeiffer, L. (1846). Symbolae ad historiam Heliceorum. Sectio tertia. 1–100. Cassellis: Th. Fischer [< 26 August]., available online at https://biodiversitylibrary.org/page/12254325
page(s): 80 [details]
original description (of Helix planorbula Lamarck, 1822) Lamarck, [J.-B. M.] de. (1822). <i>Histoire naturelle des animaux sans vertèbres</i>. Tome sixième, 2me partie, 232 pp. Paris, published by the author. , available online at http://biodiversitylibrary.org/page/13181853
page(s): 89 [details]
original description (of Polygyra cereolus var. sanctijohannis Pilsbry, 1895) Pilsbry, H. A. (1895). <i>Polygyra cereolus sanctijohannis</i> n. var. <em>The Nautilus.</em> 9(5): 56., available online at https://www.biodiversitylibrary.org/page/1731401
page(s): 56 [details]
additional source Beck, H. (1837-1838). <i>Index molluscorum praesentis aevi musei principis augustissimi Christiani Frederici</i>. 124 pp. Hafniae [Copenhagen]. Pp. 1-100 [1837]; 101-124 [1838]; Appendix: 1-8 [June 1837]. , available online at https://biodiversitylibrary.org/page/32058074
page(s): 23 [details]
additional source 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): 89 [details]
additional source Rhoads, S. N. (1899). Annotated list of land and fresh-water shells recently collected in the vicinity of Miami, Florida. <em>The Nautilus.</em> 13(4): 43-48., available online at https://www.biodiversitylibrary.org/page/42799943
page(s): 44 [details]
additional source Lee, H. G. (2010). Gettleman key to probe of major reversals. <em>American Conchologist.</em> 38(4): 6-11., available online at https://conchologistsofamerica.org/wp-content/uploads/2019/01/38-dec-2010.pdf
page(s): 9, 11, fig. 11 [details]
additional source Pilsbry, H. A. (1938). The type of <i>Polygyra</i> Say. <em>The Nautilus.</em> 52(1): 22-24., available online at https://www.biodiversitylibrary.org/page/8284522 [details]
additional source Webb, G. R. (1964). Freezing versus <i>Polygyra septemvolva</i> Say. <em>The Nautilus.</em> 78(1): 31., available online at https://www.biodiversitylibrary.org/page/8521326 [details]
additional source Dundee, D. S. & Hermann, P. W. (1965). Malacological problems: 1. <em>The Nautilus.</em> 78(3): 81-83., available online at https://www.biodiversitylibrary.org/page/8521384 [details]
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