Passage 1.38.5
---ῥεῖ δὲ Κηφισὸς πρὸς Ἐλευσῖνι βιαιότερον παρεχόμενος τοῦ προτέρου ῥεῦμα· καὶ παρʼ αὐτῷ καλοῦσιν Ἐρινεόν, λέγοντες τὸν Πλούτωνα ὅτε ἥρπασε τὴν Κόρην καταβῆναι ταύτῃ. πρὸς τούτῳ τῷ Κηφισῷ λῃστὴν Πολυπήμονα ὄνομα, Προκρούστην δὲ ἐπίκλησιν, Θησεὺς ἀπέκτεινεν.
Near Eleusis the Cephisus river flows with a stronger current than before, and beside it they have a place called Erineos, for they say that here Pluto descended when he carried off the Maiden. Near this Cephisus Theseus slew a robber named Polypemon, known also by the surname Prokrustes.