MolluscaBase name details
original description
Bean, W. (1836). Description and Figures of <em>Unio distortus</em> Bean, and <em>Cypris concentrica</em> Bean, from the Upper Sandstone and Shale of Scarborough; and <em>Cypris arcuata</em> Bean, from the Coal Formation of Newcastle. <em>The magazine of natural history and journal of zoology, botany, mineralogy, geology and meteorology.</em> 9: 376-377., available online at https://www.biodiversitylibrary.org/page/2293321
page(s): 376, textfig. 53 [details]