MolluscaBase taxon details
original description
(of Helix tectiformis G. B. Sowerby I, 1824) Sowerby, G. B. I. (1824). Descriptions, accompanied by figures, of several Helices, discovered by T. E. Bowdich, Esq. at Porto Santo. <em>Zoological Journal.</em> 1: 56-58 [March]., available online at https://www.biodiversitylibrary.org/page/27570783 page(s): 57, pl. 3, fig. 6 [details]
basis of record
Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017. [details] 
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