(Ἴσμαρος), a son of Eumolpus, is said to have fled with his father from Aethiopia to Thrace, and from thence to Eleusis. (Apollod. 3.15.4.) There is one other personage of the same name. (Apollod. 3.6.8; ASTACUS.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890