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Keywords from Image Description:
. Bluish Sea Lamprey Petromyzon nigricana. . Colored Mud Lamprey Ammocoetes bicolor. . Variegated Lamprey Petromyzon lamottenii. . Plain Mud Lamprey Ammocoetes unicolor. NYPL b. en Bluish Sea Lamprey Petromyzon nigricana Colored Mud Lamprey Ammocoetes bicolor Variegated Lamprey Petromyzon lamottenii Plain Mud Lamprey Ammocoetes