genus Aix
— Navneord
– Engelsk
~ wood duck and mandarin duck
genus Amazona
— Navneord
– Engelsk
~ a genus of Psittacidae
genus Anthonomus
— Navneord
– Engelsk
~ weevils destructive of cultivated plants
genus Acacia
— Navneord
– Engelsk
~ large genus of shrubs and trees and some woody vines of Central and South America, Africa, Australia and Polynesia: wattle; mimosa
genus Amphioxus
— Navneord
– Engelsk
~ type genus of the Amphioxidae
genus Arca
— Navneord
– Engelsk
~ type genus of the family Arcidae: ark shells and blood clams