Traits taxon details
original description
(of ) Preston, H. B. (1909). New land, freshwater, and marine shells from South América. <em>The Annals and Magazine of Natural History; zoology, botany, and geology; 8th series.</em> 3: 507-513., available online at https://www.biodiversitylibrary.org/page/22071880#page/541/ page(s): 513, pl. 10,fig. 16. [details]
basis of record
Baker, H. B. (1930). The Mollusca collected by the University of Michigan-Williamson Expedition in Venezuela. VI. <em>Occasional Papers of the Museum of Zoology, University of Michigan.</em> 210: 1-95., available online at https://deepblue.lib.umich.edu/bitstream/handle/2027.42/56649/OP210.pdf?sequence=1&isAllowed=y page(s): 32 [details] Available for editors 
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