Rathbun, M.J. (1924). New species and subspecies of spider crabs. <em>Proceedings of the United States National Museum.</em> 64(2504): 1-5.[details] Available for editors
DecaNet eds. (2025). DecaNet. Hyas coarctatus ursinus Rathbun, 1924. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=148474 on 2025-09-17
Marine Species Traits editorial board (2025). Marine Species Traits. Hyas coarctatus ursinus Rathbun, 1924. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=148474 on 2025-09-17
original descriptionRathbun, M.J. (1924). New species and subspecies of spider crabs. <em>Proceedings of the United States National Museum.</em> 64(2504): 1-5.[details] Available for editors
basis of recordAdema, J.P.H.M. (1991). De krabben van Nederland en Belgie (Crustacea, Decapoda, Brachyura). Nationaal Natuurhistorisch Museum: Leiden, The Netherlands, 244 pp. (look up in IMIS) [details] Available for editors
source of synonymyNg, P.K.L.; Guinot, D.; Davie, P.J.F. (2008). Systema Brachyurorum: Part I. An annotated checklist of the extant Brachyuran crabs of the world. <em>The Raffles Bulletin of Zoology.</em> 17: 1-286.[details] Available for editors
Present Inaccurate Introduced: alien Containing type locality