Huys, R. & S. Conroy-Dalton. (1993). Willemsia gen. nov. and Boreopontia Willems, 1981 revisited (Harpacticoida: Cylindropsyllidae). Sarsia, Bergen 78(3-4):273-300, figs 1-18, tab. 1. (look up in IMIS), available online athttps://doi.org/10.1080/00364827.1993.10413541[details] Available for editors
Walter, T.C.; Boxshall, G. (2025). World of Copepods Database. Willemsia calceola Huys & Conroy-Dalton, 1993. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025) European Register of Marine Species at: http://marbef.org/data/aphia.php?p=taxdetails&id=115828 on 2026-09-02
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2026). European Register of Marine Species. Willemsia calceola Huys & Conroy-Dalton, 1993. Accessed at: https://www.vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=115828 on 2026-09-02
original descriptionHuys, R. & S. Conroy-Dalton. (1993). Willemsia gen. nov. and Boreopontia Willems, 1981 revisited (Harpacticoida: Cylindropsyllidae). Sarsia, Bergen 78(3-4):273-300, figs 1-18, tab. 1. (look up in IMIS), available online athttps://doi.org/10.1080/00364827.1993.10413541[details] Available for editors
basis of recordHuys, R. (2001). Copepoda - Harpacticoida. <em>In: Costello, M.J. et al. (eds.) European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels.</em> 50:268-280. (look up in IMIS) [details] Available for editors
additional sourceDeprez, T. (1999). Taxonlan. [details]
Present Inaccurate Introduced: alien Containing type locality
Present 