title: Microspectrophotometry of visual pigments.
mesh_terms: D000663:Amphibians; D000818:Animals; D001717:Birds; D002462:Cell Membrane; D003445:Crustacea; D005399:Fishes; D007313:Insecta; D008322:Mammals; D010786:Photoreceptor Cells; D012104:Reptiles; D012168:Retinal Pigments; D013053:Spectrophotometry / Q000295:instrumentation
chemical_list: D012168:Retinal Pigments