Proceedings: Photosensitivity and electron microscopic observation of the pineal body of the lamprey.
D000818:Animals; D005399:Fishes / Q000502:physiology*; D007798:Lampreys / Q000502:physiology*; D010786:Photoreceptor Cells / Q000502:physiology* / Q000648:ultrastructure; D010870:Pineal Gland / Q000502:physiology* / Q000648:ultrastructure