original description
Sowerby, J.; Sowerby, J. De C. (1821-1823). The mineral conchology of Great Britain; or, Coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth. Vol. IV. Privately published by author, London, pp. 1-160, pls. 307-407., available online at https://www.biodiversitylibrary.org/page/14392771
page(s): 118, pl. 385, figs 1-8 [details]
From editor or global species database
Type locality Isle of Wight [no precise locality given], Muddiford [probably Mudeford], and Highgate and Charlton [both in London today], Great Britain [details]