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  • oblong
    head cavernous, not spongy
    C: straight or rounded
    mouth opens~front, slightly oblique
    teeth small, cónical, in bands
    preoperculum smooth/slightly serrated
    A 7-9
  • body oblong
    head cavernous, firm
    mouth large, opens ~at front
    lower teeth cónical, narrow band/1row
    preopercle serrated + spines
    A 8-10
  • oblong
    head large, eye large
    mouth oblique
    chin: 1 thin flexible poreless barbel
    preopercle membranous
    A II, weak
  • oblong
    eye large
    mouth oblique
    front lower jaw: 1 pr canines
    preopercle: smooth
    19-25 gill rakers
    A: II (2nd robust, 4/5 1st ray), 8-9
  • head low
    D 23-25
    C pointed
    mouth small, horizontal, under snout
    preopercle serrated
    A: II (2nd strong, long), 6-7
  • body oblong
    head low, wide, spongy, translucent
    preopercle serrate, spine(s) at angle
    A 8-13