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  • both sexes: 7 wide dark bars
    D2 I, 13
    scales: mainly rough, 32-55 lateral, to pectoral base
    Gobiosoma aceras, White-margined goby
    barbels: chin 2, nostril 1
  • grey
    flank: row 8-10 dark spots
    white spots: head, body & C
    Gobiosoma chiquita, Sonora goby
    no head barbels
  • lower head - 5 oblique bars
    body: strong bars
    midline - row dark spots
    D2 10-11
    Gobiosoma hildebrandi, Hildebrand's goby
    no head barbels
    genital papilla notched
  • body: grey, faint bars
    barbels: under front nostril
  • mid-snout: 1 papilla
    female: body & Ds: ~ 8 dark & white bars
    male:dark, D - white border
    Gobiosoma nudum, Knob-chin goby
    chin: 2 barbels
    2-3 bars under eye
    scales: 0-4 behind pectoral + 2 on C base
  • body dark + ~ 7 thin pale bars
    head & body pale spots
    D1 male: 1st spine long
    D2 12-13
    Ds- stripes/rows black & white spots
    Gobiosoma paradoxum, Paradox goby
    head without barbels
  • male: dark, Ds - white edges
    dark + irregular oblique white bars
    D2 I, 13-14
    scales smooth, 33-59, to pectoral base
    Gobiosoma seminudum, Tidal goby, Silt goby
    barbels: chin 2, nostril 1, snout 2
    male all dark, D1 white edge
  • head round
    body pale brown + dark dots or narrow bars
    D2 10-11
    Gobiosoma species A, Short gill-raker goby
    no head barbels
    flank scales to base of pectoral
  • dark bars: top head 2, body 7-10
    D: 2 stripes
    C base: bar
    Gobiosoma species B, Tail-scaled goby
    barbels: chin 2, front nostril 1
    pectoral base: 2 spots
  • body: faint bars
    midside: dark dashes
    D2 10
    D: 3 stripes
    C: wavy bars
    Gobiosoma species C, Few-rayed goby
    no head barbels
    pectoral base: 2 spots