title: Structure of the retinal membrane containing the visual pigments.
mesh_terms: D000818:Animals; D001001:Anura; D008566:Membranes; D008959:Models, Neurological; D010786:Photoreceptor Cells; D012168:Retinal Pigments; D014961:X-Ray Diffraction
chemical_list: D012168:Retinal Pigments