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  • upper edge operculum black
    flank - dark lines
    black blotch inside pectoral
    pectoral almost reaches anus
    A: 2nd spine < 3rd
  • forehead profile straight
    long snout
    upper border operculum dark
    A: 3rd spine not reaching base penultimate ray
  • forehead profile convex
    snout short
    upper edge operculum dark
    A: 3rd spine reaches to end or past A base
  • dark blotch behind operculum
    side - dark lines
    pectoral not to anus
    A: 2nd spine very short (= eye)