Asarcornis, whose species weres formerly placed in the genus Cairina, is a genus of ducks in the family Anatidae. 

1/  White-winged duck or white-winged wood duck (Asarcornis scutulata) 

anas, anatis: Latin duck.
Asarcornis is derived from Greek words: asarkos meaning "without flesh" and ornis meaning "bird". Therefore, the name literally translates to "without flesh bird".