MolluscaBase name details
original description
Sowerby, G. B. I. (1850). Descriptions of some additional species of <i>Cyclostoma</i>. In G. B. Sowerby II (ed.), <i>Thesaurus conchyliorum, or monographs of genera of shells</i>. Vol. 2 (11): 157*–168*, pls 31A, 31B. London, privately published. , available online at https://www.biodiversitylibrary.org/page/43937435
page(s): 161, pl. 31b, figs 306, 307. [details]