original description
Sowerby, G. B. I. (1842). Descriptions of new species of shells belonging to the genus <i>Cyclostoma</i>, collected by Mr. H. Cuming in the Philippine Islands. <em>Proceedings of the Zoological Society of London.</em> 1842: 80–84. [December]., available online at https://biodiversitylibrary.org/page/30679842
page(s): 29 [details]
additional source
Petit, R. E. (2009). George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa. <em>Zootaxa.</em> 2189: 1–218., available online at http://www.mapress.com/zootaxa/2009/f/z02189p218f.pdf [details]
additional source
Sowerby, G. B. I. (1843). Monograph of the genus <i>Cyclostoma</i>. In G. B. Sowerby II (ed.), <i>Thesaurus conchyliorum, or monographs of genera of shells</i>. Vol. 1 (3): 89-156, pl. 23-31. London, privately published. [23 June]. , available online at https://biodiversitylibrary.org/page/11076319
page(s): 91, pl. 23 fig. 6 [details]
From editor or global species database
Type locality In India Orientali, in regione Poonah dicta [details]