World Register of Marine Species (WoRMS)
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Oithona simplex Farran, 1913. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=106657 on 2026-08-30
Farran, G.P. (1913). Plankton from Christmas Island, Indian Ocean. II. On Copepoda of the genera Oithona and Paroithona. Proceedings of the Zoological Society of London 1913:181-193, pls. 27-31.