(Φερεκύδης), the name of two Greek writers, one a philosopher of Syros, and another a logographer of Athens, who are frequently confounded with one another. Suidas, indeed, mentions a third Pherecydes of Leros, but he is the same person as the Athenian, as is shown below.
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