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): 78, pl. 14, fig. 3a, b [details]
From editor or global species database
Type locality Headon Hill near Totland, Isle of Wight, United Kingdom; Bembridge Beds (= Bembridge Limestone Formation or Bouldnor Formation, Gurnard Member), Priabonian, late Eocene [details]