Phlegethon in Greek and Roman Biography and Mythology

（Φλεγέθων), i. e. the flaming, a river in the lower world, is described as a son of Cocytus; butheis more commonly called Pyriphlegethon. (Verg. A. 6.265, 550; Stat. Tolwb. 4.522.) - A Dictionary of Greek and Roman biography and mythology, William Smith, Ed.

Read More about Phlegethon in Greek and Roman Biography and Mythology