Ancistrus cirrhosus 
Ancistrus cryptophthalmus 
Ancita varicornis 
Ancognatha vulgaris 
Ancylis brauni 
Ancylis mitterbachiana 
Ancylomenes longicarpus 
Ancylomenes pedersoni 
Ancylomenes sarasvati 
Ancylomenes tenuirostris 
Ancylometes rufus 
Ancylonotus tribulus 
Ancyluris etias 
Ancyrosoma leucogrammes 
Andalusian Dutchman's Pipe 
Andaman Bronze-back 
Andaman Hind 
Andasibe Reed Frog 
Andean Altiplano Mouse 
Andean avocet 
Andean Blueberry 
Andean Buckeye 
Andean cock-of-the-rock 
Andean Condor