(Εὔρυτος), an eminent Pythagorean philosopher, whom Iamblichus in one passage (de Vit. Pyth. 28) describes as a native of Croton, while in another (ibidd. 36) he enumerates him among the Tarentine Pythagoreans. He was a disciple of Philolaus, and Diogenes Laertius (3.6, 8.46) mentions him among the teachers of Plato, though this statement is very doubtful. It is uncertain whether Eurytus was the author of any work, unless we suppose that the fragment in Stobaeus (Phys. Ecl. i. p. 210), which is there ascribed to one Eurytus, belongs to our Eurytus. (Ritter, Gesch. der Pythag. Philos. p. 64, &c.)
[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