(Anatidae; Ϯ Wood Duck A. sponsa) Gr. αιξ aix, αιγος aigos  large web-footed bird mentioned by Aristotle, not further identified, but since conjectured to be a small goose or a large duck. According to Gessner 1555, Aldrovandus 1599-1603, and other authors this was also a name for the Lapwing Vanellus (cf. αιξ aix, αιγος aigos  goat). "Fam. Anatidae Leach.  ...  Gattung Aix. 3   Hierher aus Asien: 1. Anas galericulata Lin.  2. — falcaria Pall.   America: 3. Anas sponsa Lin. Wils. pl. 70. fig. 3.  ...  Name eines Wasservogels bey Aristot." (Boie 1828); "Aix Boie, Isis, 21, 1828, p. 329. Type, by subsequent designation, Anas sponsa Linné. (Eyton, Monogr. Anat., 1838, p. 35.)" (Peters 1931, 1, 170).
Var. Aia.
Synon. Dendronessa, Lampronessa.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 12 December 2018).