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Keywords from Image Description:
Natural history of the animal kingdom for the use of young people Plate . Raiadae Petromyzidae Rays Lampreys Eagle Ray Myliohatis aquila Torpedo Torpedo marmorata Thomback Skate Rata clavata Lamprey Petromyzon marinus Lampem P'tromyioH fluviatilis Small Lampern Petromyeon Planeri Mud Lamprey Petromyzon Ftaneri immature