original description(ofPhos chelonia Dall, 1917)Dall, W. H. (1917). Summary of the mollusks of the family Alectrionidae of the west coast of America. <em>Proceedings of the United States National Museum.</em> 51 (2166): 575-579., available online athttps://biodiversitylibrary.org/page/7764911 page(s): 578. [details]