Passage 4.34.3
ὁ δὲ Ἰνδὸς καὶ ὁ Νεῖλος κροκοδείλους μὲν ἀμφότεροι, Νεῖλος δὲ παρέχεται καὶ ἵππους, οὐκ ἔλασσον ἢ ὁ κροκόδειλος κακὸν ἀνθρώποις. οἱ δὲ Ἑλλήνων ποταμοὶ δείματα ὡς ἀπὸ θηρίων εἰσὶν οὐδέν, ἐπεὶ καὶ Ἀώῳ τῷ διὰ τῆς Θεσπρωτίδος ῥέοντι ἠπείρου θηρία οὐ ποτάμια οἱ κύνες, ἀλλὰ ἐπήλυδές εἰσιν ἐκ θαλάσσης.
Both the Indus and the Nile produce crocodiles, and the Nile also brings forth hippopotamuses, a creature no less harmful to humans than the crocodile. The rivers of the Greeks, however, contain no terrors arising from beasts. Even the beasts found in the Aoös, which flows through Thesprotian territory on the mainland, are not river dwellers but creatures that enter it from the sea.