World Register of Marine Species (WoRMS)
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Harpacticus obscurus Scott T., 1895. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=116175 on 2026-08-01
Scott, T. (1895). Additions to the fauna of the Firth of Forth. Part VII. Annual Report of the Fishery Board for Scotland, Edinburgh. 13(3):165-173, pls. 3-4.