"This species was introduced into the Fremantle area from South Africa about 25 years ago (Willan 1987; reference below) and it is now permanently established there.
Willan, R.C. 1987. Phylogenetic systematics and zoogeography of Australian nudibranchs 1. Presence of the aeolid Godiva quadricolor (Barnard) in Western Australia. Journal of the Malacological Society of Australia 8: 71-85."