original description
Edwards, F. E. (1852). A monograph of the Eocene Mollusca, or descriptions of shells from the Older Tertiaries of England. Part II. Pulmonata. <em>Monographs of the Palaeontographical Society.</em> 6 (18): 57-122, pl. 10-15., available online at https://www.biodiversitylibrary.org/page/12894018
page(s): 69-70, pl. 11, fig. 4a-c [details]
From editor or global species database
Type locality Headon Hill near Totland, Isle of Wight, United Kingdom; Bembridge beds (= Bembridge Limestone Formation to Bouldnor Formation, Gurnard Member) Priabonian, late Eocene [details]