13a. suborbital scaly ; no ocellus at base of posterior dorsal spines...color uniform dark ......................melas
13b. suborbital scale less; three transverse row of scales on preopercle, the inferior limb scaly . 13-15 dorsal rays. head and back light in life . sides ,tail posterior part of soft dorsal , anterior part of anal ,and median caudal rays dark.......................xanthnotus