The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Goode, George Brown. 1884. Fisheries and Fishery Industries of the United States: Section I, Natural History of Useful Aquatic Animals, Plates. Washington, DC : Government Printing Office; Plate 255
- H. A. Pilsbry and A.A. Olsson. 1941. A Pliocene fauna from Western Ecuador. Proceedings of the Natural Sciences of Philadelphia 93:1-79