Localidade Tipo: off Cape Lookout, Carolina do Norte, EUA
Descrição original: Dall, W. H. (1888). Gasteropods and lamellibranchs. In: Agassiz A. (ed.) Three cruises of the United States Coast and Geodetic Survey Steamer “Blake” in the Gulf of Mexico, in the Caribbean Sea, and along the Atlantic coast of the United States, from 1877 to 1880, 2(8): 62-76. Houghton, Mifflin and Company, Boston and New York. 2 volumes. , available online at https://www.biodiversitylibrary.org/page/1899815page(s): 70, fig. 292