Passage 5.18.7
ταῦτα μὲν δὴ οὐδὲ ἀρχὴν ἀποδέξαιτο ἄν τις, ὡς ὁ τοῦ Κυψέλου πρόγονος Κορίνθιός τε ὢν καὶ τὴν λάρνακα αὑτῷ ποιούμενος κτῆμα, ὁπόσα μὲν Κορινθίοις ἦν ἐπιχώρια, ἑκὼν ὑπερέβαινεν, ἃ δὲ ξενικά τε καὶ οὐδὲ ἄλλως ἥκοντα ἐς δόξαν, ἐτεχνᾶτο ἐπὶ τῇ λάρνακι· αὐτῷ μέντοι παρίστατο ἐμοὶ ταῦτα εἰκάζειν. Κυψέλῳ καὶ τοῖς προγόνοις ἐκ τῶνδε Γονούσσης ἦν γένος ἐξ ἀρχῆς γονούσης τῆς ὑπὲρ Σικυῶνος, καὶ πρόγονός σφισιν ἦν Μέλας ὁ Ἀντάσου·
Indeed, no one would accept, even at the outset, that the ancestor of Cypselus—a Corinthian himself and one who was making this chest his own possession—would willingly pass over everything native to Corinth, while carefully introducing upon the chest foreign matters and others not otherwise renowned. Nevertheless, it seems appropriate to me to conjecture these things. Cypselus and his ancestors originally belonged to the stock of Gonussa, which is situated above Sicyon, and their forefather was Melas, son of Antasus.