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C 3 rear spotsCyclopsetta chittendeni, Mexican Flounderdark blotch under pectoralpectoral: plain, edge oblique, 14-16LL straight, 74-80
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C: central blotchCyclopsetta fimbriata, Spotfin Flounderdark blotch under pectoralpectoral: edge dark & straight, 11-12LL straight, 59-67