λινόπτης
From LSJ
οὐκ ἔστ' ἀλώπηξ ἡ μὲν εἴρων τῇ φύσει ἡ δ' αὐθέκαστος → foxes are not one of a treacherous nature and the other straightforward, the nature of foxes is not for one to be treacherous and the other straightforward
English (LSJ)
ου, ὁ, (ὄψομαι)
A one who watches nets to see whether anything is caught, Arist. ap. Sch.Ar.Pax 1178, Poll.5.17, Hsch.