-
lower lip - narrow flangeD origin before pectoral base
D & A rays segmentedtail > 60% TL, tip soft, flexiblejaws: teeth in bands, upper front teeth in separate patchpectoral base extends above gill opening -
snout overhangs mouth
rear nostril: hole below mid-eye levelD origin ~ over pectoral base
D & A rays unsegmentedtail < 60% TL
blunt stiff Cflanges both lips
jaw teeth in bandspectoral base extending above gill opening -
snout long, overhanging , with ventral keel
rear nostril: hole before mid-eyeD: origin slightly behind pectoral base
D & A rays segmentedtail: ~ 60% TL, tip stiff, small Cjaw teeth in bands, long patch on central roof of mouthpectoral base extends above top of gill opening -
D origin behind pectoral base
D & A rays not segmentedtail < 60% TL, tip stifftop lip flange wide
outer teeth form cutting edgehollow hidden by top lip flange is not dividedpectoral base within limits of gill opening -
snout large, conical, overhangs exposed toot patchD & A rays segmentedtail > 2/3 TL, slender, pointed