World Register of Marine Species (WoRMS)
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Malacopsyllus fragilis Sars G.O., 1911. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=115559 on 2026-08-30
Sars, G.O. (1911). Copepoda Harpacticoida. Parts XXXIII & XXXIV. Supplement (continued). An Account of the Crustacea of Norway, with short descriptions and figures of all the species. Bergen Museum, Bergen. 5:397-420, suppl. pls. 27-42.