Felix Jacoby in the context of "Hecataeus of Abdera"

Pherecydes of Athens (Ancient Greek: Φερεκύδης) (fl. c. 465 BC) was a Greek mythographer who wrote an ancient work in ten books, now lost, variously titled "Historiai" (Ἱστορίαι) or "Genealogiai" (Γενελογίαι). He is one of the authors (= FGrHist 3) whose fragments were collected in Felix Jacoby's Die Fragmente der griechischen Historiker.

He is generally thought to be different from the sixth-century Pre-Socratic philosopher Pherecydes of Syros, who was sometimes mentioned as one of the Seven Sages of Greece and was reputed to have been the teacher of Pythagoras. Although the Suda considers them separately, he is possibly the same person as Pherecydes of Leros.

Die Fragmente der griechischen Historiker, commonly abbreviated FGrHist or FGrH (Fragments of the Greek Historians), is a collection by Felix Jacoby of the works of those ancient Greek historians whose works have been lost, but of which we have citations, extracts or summaries. It is mainly founded on Karl Wilhelm Ludwig Müller's previous Fragmenta Historicorum Graecorum (1841–1870).

The work was started in 1923 and continued by him till his death in 1959. The project was divided into six parts, of which only the first three were published. The first included the mythographers and the most ancient historians (authors 1-63); the second, the historians proper (authors 64–261); the third, the autobiographies, local histories and works on foreign countries (authors 262-856). Parts I-III come to fifteen volumes, but Jacoby never got to write part IV (biography and antiquarian literature) and V (historical geography). A pool of editors is currently trying to complete this task (Die Fragmente der griechischen Historiker. Continued); 200+ new entries have been published online so far (in English, German, French and Italian), with editions in print following for part IV. Meanwhile a new English-language edition of Jacoby's original work (parts I-III) has also been published online, Brill's New Jacoby (BNJ), with a completely new commentary, providing English translations of all fragments and an updated bibliography.

Asclepiades of Tragilus (Greek: Ἀσκληπιάδης) was an ancient Greek literary critic and mythographer of the 4th century BC, and a student of the Athenian orator Isocrates. His works do not survive, but he is known to have written the Tragodoumena (Τραγῳδούμενα, "The Subjects of Tragedy"), in which he discussed the treatment of myths in Greek tragedy. The Tragodoumena is sometimes considered the first systematic mythography. Asclepiades summarized the plots of myths as dramatized in tragedy, and provided details and variants. He is one of the authors (= FGrHist 12) whose fragments were collected in Felix Jacoby's Die Fragmente der griechischen Historiker. He is cited twice in the work traditionally known as the Library of Apollodorus.

A gloss on Vergil's phrase Idaeis cyparissis ("cypresses of Ida") mentions that Asclepiades preserved a Celtic version of the myth of Cyparissus, in which a female Cyparissa is the daughter of a Celtic king named Boreas.