Passage 8.23.9
ἄγει μὲν δὴ ὁ Σόρων τὴν ἐπὶ Ψωφῖδος· θηρία δὲ οὗτός τε καὶ ὅσοι δρυμοὶ τοῖς Ἀρκάσιν εἰσὶν ἄλλοι παρέχονται τοσάδε, ἀγρίους ὗς καὶ ἄρκτους καὶ χελώνας μεγίστας μεγέθει· λύρας ἂν ποιήσαιο ἐξ αὐτῶν χελώνης Ἰνδικῆς λύρᾳ παρισουμένας. τοῦ Σόρωνος δὲ πρὸς τοῖς πέρασιν ἔστι μὲν Πάου κώμης ἐρείπια, εἰσὶ δὲ οὐ πολὺ ἀπωτέρω αἱ καλούμεναι Σεῖραι· ὅροι δὲ Κλειτορίοις τῆς χώρας πρὸς Ψωφιδίους εἰσὶν αἱ Σεῖραι.
Soron leads to Psophis. This mountain and all the other forests that the Arcadians possess produce the following beasts: wild boars, bears, and tortoises remarkable for their great size. From these tortoise-shells one could fashion lyres equal to those made from the shell of the Indian tortoise. Near the borders of Soron are the ruins of the village called Paos, and a little farther off are the so-called Seirai. The Seirai themselves mark the boundary between the Kleitorian territory and that of the Psophidians.