MolluscaBase name details
original description
(of Helix (Petasia) Beck, 1837) Beck, H. H. (1838). Species novarum in indice molluscorum praesentis aevi musei Principis Christiani Frederici ab autore propositarum characteres breves. Hafniae (= København): 1-8. [June]., available online at https://biodiversitylibrary.org/page/32058146
page(s): 21 [details]
basis of record
Bank, R. A. (2017). Classification of the Recent terrestrial Gastropoda of the World. Last update: July 16th, 2017. [details]