MolluscaBase name details
original description
Conrad, T. A. (1833). Fossil shells of the Tertiary formations of North America, illustrated by figures drawn on stone from nature. Philadelphia: Judah Dobson, W. P. Gibbons, Printer. Vol. 1(3):29-38 pp; Vol. 1(4):39-46 pp. [Vol. 1(1):viii + 9-20, pls. 1-6. , available online at https://www.biodiversitylibrary.org/page/23521363
page(s): p. 35. [details]
additional source
Harris, G.D. (1893) Republication of Conrad's Fossil Shells of the Tertiary Formations of North America. Rufus H. Darby, Washington, 121 pp., 20 pls.
page(s): p. 40, pl. 15, fig. 13. [details]