title: Morphological and electrophysiological studies of a multiple photoreceptive system in a marine gastropod, Onchidium.
mesh_terms: D000818:Animals; D005123:Eye / Q000033:anatomy & histology; D008974:Mollusca / Q000033:anatomy & histology / Q000502:physiology*; D009799:Ocular Physiological Phenomena; D010786:Photoreceptor Cells / Q000166:cytology / Q000502:physiology*; D012867:Skin / Q000294:innervation; D012879:Skin Physiological Phenomena; D014785:Vision, Ocular / Q000502:physiology*