μελάνουρος
From LSJ
στάζει γὰρ αὖ μοι φοίνιον τόδ᾽ἐκ βυθοῦ κηκῖον αἷμα → blood oozing from the deep wound, bloody gore drops oozing from the depths of my wound
English (LSJ)
ὁ, (οὐρά) a sea-fish,
A black-tail, Oblata melanura, Epich.56, Cratin.221, Antiph.194.4, Arist.HA591a15, Speus. ap. Ath.7.313e, Numen.ib.d; μὴ γεύεσθαι μελανούρων Pythag. ap.Plu.2.12d. II a kind of snake, perh. = διψάς, Ael.NA6.51.