(Μαριανδυνός), a son of Phineus, Titius, or Phrixus, was the ancestral hero of the Mariandynians in Bithynia. (Schol. ad Apollon. 2.723, 748.) It also occurs as a surname of Bormus. (Aeschyl. Pers. 938; comp. BORMUS.)
[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