νεόκτιστον: Built by the sons of Phrixos.
λίθων: The best MSS. have λίθινον, which is a gloss. This shows that the old readers connected it with θέναρ.
θέναρ: I. 3 (4), 74: βαθυκρήμνου πολιᾶς ἁλὸς ἐξευρὼν θέναρ, where it means the hollow (depth) of the sea, as it elsewhere means the hollow of the hand. Acc. to the Schol. τὸ κοίλωμα τοῦ βωμοῦ τὸ ὑποδεχόμενον τὰ θύματα.