original description
(of Hyalina (Euhyalina) planospira Sacco, 1886 †) Sacco, F. (1886). Fauna malacologica delle alluvioni plioceniche del Piemonte. <em>Memorie della Reale Accademia delle Scienze di Torino, Serie II.</em> 37: 169-206., available online at https://www.biodiversitylibrary.org/page/43201564
page(s): 186-187, pl. 1, fig. 6a, b [details]
basis of record
Esu, D.; Girotti, O. (2023). Systematics of Pliocene and Pleistocene gastropods from Tuscany and Umbria (Central Italy) (Stylommatophora: Helicina). <em>Archiv für Molluskenkunde.</em> 152(2): 281-299., available online at https://doi.org/10.1127/arch.moll/1869-0963/152/281-299
page(s): 294 [details]
From editor or global species database
Status Status as distinct species uncertain, might be a subspecies or synonym of Retinella depressissima (Sacco, 1884) according to Esu & Girotti (2023). [details]