original description
Li, C. C. (1930). The Miocene and Recent Mollusca of Panama Bay. <em>Bulletin of the Geological Society of China.</em> 9(3): 249-296, 8 pls.
page(s): 270-271, pl. 7, fig. 58 [details] Available for editors [request]
source of synonymy
Keen, A. M. (1971). Sea Shells of Tropical West America. Marine mollusks from Baja California to Peru. ed. 2. Stanford University Press. xv, 1064 pp., 22 pls.
page(s): 633 [details]
From editor or global species database
Type locality Mouth of Rio Grande, in mud, 10–40 ft, 1 mi from mainland near La Boca, Panama Bay, Panama, Pacific Ocean [details]