Acarnan (a fish, probably the labrax) and Amphoterus (both) In Greek mythology, sons of Alcmaeon and Callirrhoë. When their mother heard of their father’s murder by Phegeus and his sons, she prayed to Zeus (who was her lover) to let her sons grow up at once into men to avenge his death. Her prayer was granted, and her two sons killed Phegeus and his sons. Acarnan and Amphoterus then took the jewels of Harmonia and offered them at the shrine at Delphi. Later the two founded a kingdom called Acarnania, named after the elder brother, Acarnan.
Encyclopedia of World Mythology and Legend, Third Edition – Written by Anthony S. Mercatante & James R. Dow– Copyright © 2009 by Anthony S. Mercatante