9b. Pectorals slightly shorter than head; no vertical dark blotches. ...10 10a First ray of ventrals with a long filament, which reaches to anal... ..............N.marginatus 10b. First ray of ventrals, if filamentous, never reaching as far as anal; dorsal spines rigid and pungent; depth of as suborbital equal to vertical diameter of eye.... ..N.mesoprion