MolluscaBase name details
original description
Brown, A. P. & Pilsbry, H. A. (1911). Fauna of the Gatun formation, Isthmus of Panama. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 63: 336-373, pls. 22-29., available online at https://www.biodiversitylibrary.org/page/1696401
page(s): 362, pl. 27, fig. 8 [details]