Tolley, K.A., Alexander, G.J., Pietersen, D., Conradie, W. & Weeber, J.: Ouroborus cataphractusIUCN Red List of Threatened Species. Version 2022-1. 2022. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 22.7.2022. (englanniksi)