Sinônimos: Amphidesma radiata Say, 1826; Amphidesma subtruncata G. B. Sowerby I, 1853; Semele proficua radiata (Say, 1826)
Descrição original: Say, T. (1826). Descriptions of marine shells recently discovered on the coast of the United States. Journal of the Academy of Natural Sciences of Philadelphia. 5(2):207-221., available online at https://www.biodiversitylibrary.org/page/24657265 page(s): 220