original description
Pilsbry, H. A. & Olsson, A. A. (1941). A Pliocene fauna from western Ecuador. <em>Proceedings of the Academy of Natural Science of Philadelphia.</em> 93: 1–79, 19 pls.
page(s): 45, pl. 7, fig. 5 [details] Available for editors [request]
From editor or global species database
Type locality Canoa formation, Punta Blanca (Ecuador) [details]