original description
Conrad, T. A. (1874). Description of two new fossil shells from the Upper Amazon. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 1874: 82-83., available online at https://www.biodiversitylibrary.org/page/26361924
page(s): 83, pl. 12, fig. 4 [details]
From editor or global species database
Type locality Iquitos, about 100 miles west of Pebas (Peru) [details]