Traits taxon details
original description
(of ) 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): 163*, pl. 31B, fig. 319 [details]
basis of record
Bartsch, P. & Morrison, J. P. E. (1942). Part 3 - The cyclophorid mollusks of the mainland of America. In: Torre, C. de la; Bartsch, P.; Morrison, J. P. E. The cyclophorid operculate land mollusks of America. <em>United States National Museum Bulletin.</em> 181: 142-293., available online at https://www.biodiversitylibrary.org/page/7837960 [details]
additional source
Breure, A. S. H., Roosen, M. T. & Ablett, J. D. (2022). Land and freshwater molluscs of mainland Ecuador: an illustrated checklist. <em>Iberus.</em> 40(1): 1-290. page(s): 40-41, figs. 36, 41 [details]
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