original description
(of Cyclostoma giganteum Reeve, 1842) Reeve, L. A. (1841-1842). <i>Conchologia Systematica, or complete system of conchology; in which the Lepades and conchiferous Mollusca are described and classified according to their natural organization and habits</i>. Longman, Brown, Green, & Longman's, London. Vol. 1: 1-195, pls 1-129; Vol. 2: 1-338, pls 130-300 [Vol. 1, part 1, pp. 1-40, fold-out table, pls. 1-22, Oct. 1 1841; v. 1, p. 2, pp. 41-72, pls. 23-50, Nov. 1841; v. 1, p. 3, pp. 73-104, pls. 51-80, Dec. 1, 1841; v. 1, p. 4, pp. 105-144, pls. 81-104, Jan. 1842; v. 1, p. 5, pp. 145-195, pls 105-129, 114 [added plate], Feb. 1842; v. 2, p. 6, pp. 1-40, pls. 130-146, 148, 149, Mar. 1842; v. 2, p. 7, pp. 41-80, pls. 150-172, 147, Apr. 1842; v. 2, p. 8, pp. 81-120, pls. 172-193, Jun. 1842; v. 2, p. 9, pp. 121-168, pls. 194-221, Jul. 1842; v. 2, p. 10, pp. 169-200, pls. 222-245, Aug. 1842; v. 2, p. 11, pp. 201-236, pls. 246-269, Oct. 1842; v. 2. p. 12, pp. 237-337, pls. 270-330, Dec. 1842]., available online at https://www.biodiversitylibrary.org/page/15916228
page(s): 99, pl. 184, fig. 17 [details]
basis of record
Thompson, F. G. (2011). An annotated checklist and bibliography of the land and freshwater snails of México and Central America. <em>Florida Museum of Natural History Bulletin.</em> 50(1): 1-299. [details] Available for editors [request]
basis of record
Morrison, J. P. E. (1955). Notes on American cyclophoroid land snails, with two new names, eight new species, three new genera, and the family Amphicyclotidae, separated on animal characters. <em>Journal of the Washington Academy of Sciences.</em> 45(5): 149-162., available online at https://www.biodiversitylibrary.org/page/39747003
page(s): 157 [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): 46, 48, figs. 46-48, 63 [details]
From editor or global species database