title: Light microscopy of the pineal organ of two primitive lizards, Platyurus platyurus and Hemidactylus frenatus.
mesh_terms: D000818:Animals; D004702:Endocrine Glands / Q000502:physiology; D008116:Lizards / Q000033:anatomy & histology*; D010786:Photoreceptor Cells / Q000502:physiology; D010870:Pineal Gland / Q000033:anatomy & histology* / Q000502:physiology