title: On the role of eyes and non-ocular light receptors in orientational behaviour of Lymnaea stagnalis (L.).
mesh_terms: D000818:Animals; D005123:Eye / Q000528:radiation effects; D008027:Light; D008195:Lymnaea / Q000502:physiology*; D009799:Ocular Physiological Phenomena; D009949:Orientation; D010786:Photoreceptor Cells; D011830:Radiation Effects