Traits taxon details
original description
Thompson, F. G. (1968). <i>Ceochasma</i>, a remarkable new land snail from Colima, Mexico (Gastropoda, Prosobranchia, Helicinidae). <em>Proceedings of the Biological Society of Washington.</em> 81: 45-52., available online at https://www.biodiversitylibrary.org/page/34605586 page(s): 46, fig. 1-6 [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
additional source
Richling, I. (2004). Classification of the Helicinidae: Review of morphological characteristics based on a revision of the Costa Rican species and application to the arrangement of the Central American mainland taxa (Mollusca: Gastropoda: Neritopsina). <em>Malacologia.</em> 45(2): 195-440., available online at https://biodiversitylibrary.org/page/25129581 page(s): 400 [details]
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