Pola, M., Cervera, J.L., Gosliner, T.M. 2005 Review of the systematics of the genus Roboastra Bergh, 1877 (Nudibranchia, Polyceridae, Nembrothinae) with the description of a new species from the Galápagos Islands, Zoological Journal of the Linnean Society, 144(2) (p.174)
Willan, R.C., Coleman, N. 1984Nudibranchs of Australasia, Neville Coleman's Australasian Marine Photographic Index, Sydney (p.12)
Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species.
They have been adopted to give an approxomation of the range of each species within New Zealand.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island