World Register of Marine Species (WoRMS)
Fordyce, E.; Perrin, W.F. (2026). World Cetacea Database. Ziphius layardii Gray, 1865. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=380513 on 2026-08-30
Gray J.E. (1865). Notes on the whales of the Cape; by E. L. Layard, Esq., of Cape-Town, Corr. Memb. with descriptions of two new species. Proceedings of the Zoological Society of London, April 11, 1865:357--359.