Lewis Short
bōx (noun M) = βώξ, βόαξ:
* A sea-fish, otherwise unknown, Plin. 32, 11, 53, § 145. In Paul. ex Fest. p. 30, 6 Müll. (Jan. boca), bocas: bocas = genus piscis a boando id est vocem emittendo appellatur; cf. Isid. Orig. 12, 6, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary