original description
Sowerby, J. De C. (1836). Descriptive notes respecting the shells figured in Plates XI to XXIII. In: Fitton, W.H. Observations on some of the strata between the Chalk and the Oxford Oolite, in the South-east of England. <em>Transactions of the Geological Society of London, ser. 2.</em> 4(2): 335-349 (Appendix A)., available online at https://www.biodiversitylibrary.org/page/36206436
page(s): 346, pl. 21, fig. 12 [details]
From editor or global species database
Type locality "In 'Quarry vein', one of the strata worked for stone, near Swanage. [...] Durlstone Bay. [...] in slaty stone, at Upway, N. of Weymouth" [Fitton 1836, p. 229] and "Between Dallard's Farm and Catherine Ford [...]. in slaty Purbeck stone [...]. Lane above Benston, near Chicksgrove" [Fitton 1836, p. p. 259] (England, United Kingdom) [details]