T. G. Tucker, Commentary on Thucydides: Book 8

Ἀλεξιππίδα The actual Doric genitive is used in the treaty. Alexippidas was the ephor eponymus. Cf. Paus. iii. 11, 2, ἔφοροι παρέχονται τὸν ἐπώνυμον καθὰ δὴ καὶ Ἀθηναίοις τῶν καλουμένων ἐννέα ἐπώνυμός ἐστιν εἷς ἄρχων. So in Xen. Hellenica regularly, e.g. ἐπὶ ἐφόρου μὲν ὄντος ἐν Σπάρτῃ Εὐαρχίππου, ἄρχοντος δ᾽ ἐν Ἀθήναις Εὐκτήμονος (i. 2, 1) etc.

ἐν Μαιάνδρου πεδίῳ: in Caria: iii. 19, ἐκ Μυοῦντος ἀναβὰς διὰ τοῦ Μαιάνδρου πεδίου μέχρι τοῦ Σανδίου λόφου. Strabo XIV. p. 648, XV. p. 691. The Maeander empties itself opposite Miletus. Magnesia, the seat of the satrap (cap. 50, § 3), is in the district. In c. 57, § 1, Tissaphernes went down to Caunus, and this compact is made on his return, and includes all the Persians in contact with Grecian affairs.

Ἱεραμένη κ.τ.λ. Hieramenes is mentioned in Xen. Hell. ii. 1, 9 as brother-in-law of Darius. His function in Asia Minor is unknown. Like Theramenes acting for Sparta (cc. 36, 38, 43), he may not have been an actual governor of a district concerned, but only present as one of the plenipotentiaries of the king. The ‘sons of Pharnaces’ include Pharnabazus, the satrap of Dascyhtis (c. 6, § 1), but Pharnabazus appears not to have been present in person at the signing of this treaty. The contracting parties on the Persian side were Tissaphernes for the satrapy of τὰ κάτω, the sons of Pharnaces representing Pharnabazus of the satrapy of Dascylitis, and Hieramenes probably directly representing the king. The compact is with plenipotentiaries, and the treaty does not begin ξυνθῆκαι πρὸς βασιλέα as in cc. 18 and 37.