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head robustD: III spine finlet + main finflaps both lipsoperculum, pectoral base & belly scaled
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head moderate sizeD1: 3-spined finlet on napeC + branched rays
belly scalelesslip flaps - lower onlybelly without scales -
both lips + skin flapsD: 2-spine finlet + 2 free spines + main finC no branched raysbelly all scaled