Anatolian Orchid 
Anatololacerta oertzeni pelasgiana 
Anaxarcha limbata 
Anaxilaus oliva 
Ancamptis palustris 
Ancash tapaculo 
Anchemola sphinx moth 
Anchicayá Anole 
Anchises cattleheart 
Anchomenus dorsalis 
Anchonium billardierei 
Anchor Coral Shrimp 
Anchor stink bug 
Anchored water hyacinth 
Anchusa milleri 
Anchusa undulata 
Ancient antwren 
Ancistrocerus trifasciatus 
Ancistrus cirrhosus 
Ancistrus cryptophthalmus 
Ancita varicornis 
Ancognatha vulgaris 
Ancylis brauni 
Ancylis mitterbachiana