Two twins, Eurytus and Cteatus, of Poseidon and Molione.
The brothers participated in the Calydonian Boar Hunt, and were also among the crew of the Argonauts.
When Heracles marched against their uncle Augeias, Augeias hired the twins to fight for him. These two great men fought well against Heracles' army. Heracles himself was ill, and could not fight. He, therefore, resorted to treachery. While the Moliones were traveling to the Isthmian Games to compete (a truce was declared during all games), he ambushed and killed the two brothers. Then, his army marched to Elis and killed Augeias.