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  • body: 1 dark stripe, male + several blue stripes
    D 11
    Cubanichthys cubensis, Cuban Killifish
    teeth single point
    pectoral 18
    no large scale behind operculum
  • cheek not deep
    large scale behind operculum
    both sexes: D with black spot
    N Yucatan to Belize
    Cyprinodon artifrons, Yucatan Pupfish
    teeth - 3 points
    scales smooth
    large scale behind operculum
    male lower body & fins blackish
  • cheek not deep
    large scale behind operculum
    S Caribbean
    Cyprinodon dearborni, Petotica, Petotica Pupfish
    teeth - 3 points
    scales smooth
    large scale behind operculum
  • cheek deep
    large scale behind operculum
    Cyprinodon laciniatus, Bahama Pupfish
    teeth - 3 points
    scale edges scalloped rough
    large scale behind operculum
    Bahamas & Cuba
  • cheek not deep
    large scale behind operculum
    female - black spot on D
    Cyprinodon variegatus, Sheepshead Minnow, Sheepshead Minnow Pupfish
    teeth - 3 points
    scale edges smooth
    large scale behind operculum
  • 9-15 long thin dark bars
    D 11-12
    Floridichthys carpio, Goldspotted Killifish
    teeth - 3 points
    pectoral 16-18
    slightly enlarged scale behind operculum
    Florida
  • 4-8 long, thin dark bars
    D 11-12
    Floridichthys polyommus, Ocellated Killifish
    teeth - 3 points
    pectoral 18-21
    slightly enlarged scale behind operculum
    Yucatan
  • D 14-18, 1st ray spine-like
    A 11-13
    C 17-21 rays
    teeth - 3 pointed
    pectoral 14-16
    slightly enlarged scale behind operculum
  • dark oblique bar under eye
    D 14-17, 1st ray not spine-like
    A 8-10
    C 12-16
    Jordanella pulchra, Progreso Flagfish, Yucatan Flagfish
    teeth - 3 pointed
    no chin pores
    pectoral 13-17
    slightly enlarged scale behind operculum