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elongateD deeply notched, XI-XIIItop jaw strongly protrusible, rear bone large, scaledjaw teeth minute/absentA III
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D VII-X + 0-I, 7-10rear top jaw bone exposed when mouth closedoperculum: 1-2 flat points or several spinesA II-III, 6-9
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with mouth closed - top jaw partly hiddenD continuous, Xteeth cónical, on mouth roof
chin - no porespreopercle serratedno scales - snout, under eye, lower jaw