Carpenter, P. P. (1864). Supplementary report on the present state of our knowledge with regard to the Mollusca of the West Coast of North America. <em>Reports of the British Association for the Advancement of Science.</em> (1863) 33: 517-686., available online athttps://www.biodiversitylibrary.org/page/29370651 page(s): 655 [details]
original descriptionCarpenter, P. P. (1864). Supplementary report on the present state of our knowledge with regard to the Mollusca of the West Coast of North America. <em>Reports of the British Association for the Advancement of Science.</em> (1863) 33: 517-686., available online athttps://www.biodiversitylibrary.org/page/29370651 page(s): 655 [details]
basis of recordBartsch, P. (1911). The Recent and fossil mollusks of the genus <i>Bittium</i> from the west coast of America. <em>Proceedings of the United States National Museum.</em> 40 (1826): 383-414, pls 51-58., available online athttps://www.biodiversitylibrary.org/page/15845645[details]
Present Inaccurate Introduced: alien Containing type locality