Descrição original: Schwengel, J. S. (1942). New Floridan marine mollusks. The Nautilus. 56(2): 62-66, pls 3, 6., available online at https://www.biodiversitylibrary.org/page/8520165page(s): 65, pl. 6, fig. 3; note: Also see The Nautilus, 53(3): pl. 12, fig. 14 (January 1940)