MolluscaBase taxon details
original description
(of Helix (Helicogena) heligmoida A. d'Orbigny, 1835) Orbigny, A. d'. (1835). Synopsis terrestrium et fluviatilium molluscorum, in suo per Americam meridionalem itinere collectorum. <em>Magasin de Zoologie.</em> 5(62): 1-44., available online at https://www.biodiversitylibrary.org/page/2633132
page(s): 2 [details]
basis of record
Salvador, B. R.; Cavallari, D. C. (2020). Taxonomy and distribution of enigmatic “helicoid” Polygyratia Gray, 1847 (Gastropoda, Stylommatophora). <em>Zoosystematics and Evolution.</em> 96(1): 91-101., available online at https://doi.org/10.3897/zse.96.51047
page(s): 98 [details]
additional source
Breure, A. S. H., Roosen, M. T. & Ablett, J. D. (2022). Land and freshwater molluscs of mainland Ecuador: an illustrated checklist. <em>Iberus.</em> 40(1): 1-290.
page(s): 110, figs. 139l, 147 [details]