-
body deep, oval
snout: central groove oblongbig spines point back under eyepreoperculum 2 large spinesA 9-12 -
body oblong, deep
snout: central groove triangularno spines under eyepreoperculum slightly crescentic, no spines -
body oval, deep
snout groove narrow, rhomboidaluniform redspines under eye point forwardsno large spines on operculum, preoperculumA 11