(syn. Anas Ϯ Indian Spot-billed Duck A. poecilorhyncha) Gr. πολιος polios  grey; νηττα nētta  duck; "The Grey Ducks differ from the True Ducks in so many important respects that I am obliged to regard them as a very distinct group.  ...  There is no genus in which the Grey Ducks can be placed, and I therefore propose the name Polionetta for them, with Polionetta pœcilorhyncha as the type of the genus" (Oates 1899).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 22 January 2019).