original description
Porro, C. (1838). <i>Malacologia terrestre e fluviale della Provincia Comasca</i>. Milano: Guglielmini & Redaelli. 132 + [4] (= Autori ed opere citate nello species) pp., pls 1-2. [> July]. , available online at https://biodiversitylibrary.org/page/12961791
page(s): 57 [details]
From editor or global species database
Type locality "Valgana" [details]