1. A musician of the Mythic period, before the Trojan war. He is said to have invented the Hieracian measure, nomos hierakios, and to have been the friend and disciple of Olympus the musician. He died young. (Pollax, iv. 10; Fabr. Bibl. Gr. vol. i. pp. 136 and 726.)

2. The name of two (other) mythical personages, respecting whom nothing of interest is related. (Apoll. ii. 1. § 3; Ant. Lib. 3.) [See HERMES.]