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Keywords from Image Description:
MonographTrochiSupplementGoul . Callipharus nigriventris Eupherusa nigriventris micheldesfayes org html Gould John monograph of the Trochilidae or family of hummingbirds archive org page Creator John Gould Creator William Matthew Hart PDold William Matthew Hart Monograph of the Trochilidae Supplement Eupherusa nigriventris