Walter, T.C.; Boxshall, G. (2024). World of Copepods Database.
Harpacticus gracilis Claus, 1863. Accessed through: Nozères, C., Kennedy, M.K. (Eds.) (2024) Canadian Register of Marine Species at: https://www.marinespecies.org/Carms/aphia.php?p=taxdetails&id=116170 on 2025-04-17
Nozères, C., Kennedy, M.K. (Eds.) (2025). Canadian Register of Marine Species.
Harpacticus gracilis Claus, 1863. Accessed at: https://www.marinespecies.org/Carms/aphia.php?p=taxdetails&id=116170 on 2025-04-17