(syn. Aythya Ϯ New Zealand Scaup A. novaeseelandiae) Portmanteau of toponym New Zealand, and genus Fuligula Stephens, 1824, duck (< L. fuligo, fuliginis  soot) (cf. genus Fulix Sundevall, 1836, duck (<  L. fulix, fuligis  coot)); "Genus Fuligula Stephens, 1824, tautotype Anas fuligula Linné.   Zeafulix sub-gen. nov.   Type Anas novæseelandiæ Gm.   The type of this new genus differs from the type of Fuligula in lacking the long head crest" (Mathews 1937) (OD per Mark Brown).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2020). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2020). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 23 February 2020).