Passage 2.20.7
παρὰ δὲ τὸ ἱερὸν τοῦ Κηφισοῦ Μεδούσης λίθου πεποιημένη κεφαλή· Κυκλώπων φασὶν εἶναι καὶ τοῦτο ἔργον. τὸ δὲ χωρίον τὸ ὄπισθεν καὶ ἐς τόδε Κριτήριον ὀνομάζουσιν, Ὑπερμήστραν ἐνταῦθα ὑπὸ Δαναοῦ κριθῆναι λέγοντες. τούτου δέ ἐστιν οὐ πόρρω θέατρον· ἐν δὲ αὐτῷ καὶ ἄλλα θέας ἄξια καὶ ἀνὴρ φονεύων ἐστὶν ἄνδρα, Ὀθρυάδαν τὸν Σπαρτιάτην Περίλαος Ἀργεῖος ὁ Ἀλκήνορος· Περιλάῳ δὲ τούτῳ καὶ πρότερον ἔτι ὑπῆρχε Νεμείων ἀνῃρῆσθαι νίκην παλαίοντι.
Beside the sanctuary of Cephisus there is a head of Medusa made of stone; this too, they say, is a work of the Cyclopes. Behind this spot is a place which even today is called Criterion ("Judgment-place"); here, they say, Hypermnestra was judged by Danaus. Not far from here is a theater, and in it there are other noteworthy sights including a sculpture of a man killing another man, Perilaus, the Argive, son of Alcenor, slaying Othryades, the Spartan. This Perilaus had earlier distinguished himself by winning a wrestling victory at the Nemean games.