World Register of Marine Species (WoRMS)
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2026). World Hydrozoa Database. Scandia mutabilis (Ritchie, 1907). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=284982 on 2026-08-30
Ritchie, J. 1907a. On collections of the Cape Verde Island marine fauna, made by Cyril Crossland, M. A. (Cantab.), B.Sc. (Lond.), F.Z.S., of St. Andrews University, July to September, 1904. Proceedings of the Zoological Society of London 1907: 488-514,pls 23-26.
Warren, E. 1908. On a collection of hydroids, mostly from the Natal coast. - Annals of the Natal Government Museum 1: 269-355.