(Πειρήν), the name of two mythical personages, one the father of Io, commonly called Inachus (Apollod. 2.1.2), and the other a son of Glaucus, and brother of Bellerophon. (Apollod. 2.3.1.)
[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