MolluscaBase taxon details
original description
(of Helix fortis C. B. Adams, 1850) Adams, C. B. (1850). Descriptions of supposed new species and varieties of terrestrial shells, which inhabit Jamaica. <em>Contributions to Conchology.</em> 5: 76-84., available online at https://www.biodiversitylibrary.org/page/13796490
page(s): 77 [details]
original description
(of Helix okeniana L. Pfeiffer, 1845) Pfeiffer, L. (1845). Description of twenty-two new species of land-shells, belonging to the collection of Mr. H. Cuming. <em>Proceedings of the Zoological Society of London.</em> 13(147): 63–68. London [30 September]., available online at https://www.biodiversitylibrary.org/page/12862559
page(s): 63 [details]
basis of record
Sei, M., Robinson, D. G., Geneva, A. J. & Rosenberg, G. (2017). Doubled helix: Sagdoidea is the overlooked sister group of Helicoidea (Mollusca: Gastropoda: Pulmonata). <em>Biological Journal of the Linnean Society.</em> 122(4): 697-728., available online at https://doi.org/10.1093/biolinnean/blx082 [details] Available for editors [request]