Traits name details
original description
Nelson, E. T. (1870). On the molluscan fauna of the later Tertiary of Peru. <em>Transactions of the Connecticut Academy of Arts and Science.</em> 2: 186-206, pls 6-7., available online at https://www.biodiversitylibrary.org/page/7502942 page(s): 192, pl. 6, fig. 7 [details]
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