MolluscaBase name details
Helix (Isthmia) J. E. Gray, 1821
1329539 (urn:lsid:marinespecies.org:taxname:1329539)
unaccepted > superseded combination
Vertigo (Isthmia) J. E. Gray, 1821 represented as Vertigo O. F. Müller, 1773
Subgenus
Helix (Isthmia) cylindrica J. E. Gray, 1821 accepted as Vertigo pygmaea (Draparnaud, 1801) (type by monotypy)
- Species Helix (Isthmia) cylindrica J. E. Gray, 1821 accepted as Vertigo pygmaea (Draparnaud, 1801) (unaccepted > junior subjective synonym)
Gray, J. E. (1821). A natural arrangement of Mollusca, according to their internal structure. <em>London Medical Repository.</em> 15 (87): 229–239., available online at https://archive.org/details/s0id11783780/page/229/mode/1up
page(s): 239 [details]
page(s): 239 [details]
MolluscaBase eds. (2025). MolluscaBase. Helix (Isthmia) J. E. Gray, 1821. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1329539 on 2025-05-18
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original description
Gray, J. E. (1821). A natural arrangement of Mollusca, according to their internal structure. <em>London Medical Repository.</em> 15 (87): 229–239., available online at https://archive.org/details/s0id11783780/page/229/mode/1up
page(s): 239 [details]
page(s): 239 [details]