MolluscaBase taxon details
original description
(of Hemisinus gracillimus Pilsbry & Olsson, 1935 †) Pilsbry, H. A. & Olsson, A. A. (1935). Tertiary fresh-water mollusks of the Magdalena Embayment, Colombia. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 87: 7-39. page(s): 15, pl. 2, fig. 12 [details] Available for editors [request]
basis of record
Parodiz, J. J. (1969). The Tertiary non-marine Mollusca of South America. <em>Annals of the Carnegie Museum.</em> 40: 1-242., available online at https://www.biodiversitylibrary.org/page/54645900 page(s): 132, pl. 15, fig. 10 [details] Available for editors [request]
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