Traits taxon 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
Baker, H. B. (1925). The Mollusca collected by the University of Michigan-Williamson Expedition in Venezuela, Part III: Pupillidae to Oleacinidae. <em>Occasional Papers of the Museum of Zoology, University of Michigan.</em> 156: 1-56, pls. 6-11., available online at https://deepblue.lib.umich.edu/bitstream/handle/2027.42/56595/OP156.pdf?sequence=1&isAllowed=y page(s): 2 [details]
additional source
Haas, F. (1960). Caribbean land molluscs: Vertiginidae. <em>Studies on the Fauna of Curaçao and other Caribbean Islands: no. 41.</em> 10(1): 1-17, pls. 1-5. page(s): 5 [details] Available for editors 
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