Aegina, e-ji'na, in Greek mythology, the daughter of Asopus, the river god. Zeus carried Aegina away to a rocky island in the Saronic Gulf of the Aegean Sea. Here their son Aeacus was born. As the island had no other inhabitants, Zeus transformed the ants of the place into men, calling them Myrmidons. Aeacus grew to manhood and ruled these people. He was renowned throughout Greece for justice and piety, and at death became one of the three judges of Hades. The island was named Aegina in honor of the nymph. See MYRMIDONS.