The spectral characteristics of shadow response in mature adults of Lymnaea stagnalis
Comparative research on spectral dependence between the appearance of shadow defensive reflex in intact and eyeless adults of Lymnaea stagnalis proved the excitatory role of dermal photoreception and the inhibitory role of the ocular one. The shape of the curve and the modified spectral maximum of the absorption of dermal light-sensitive pigment (490 nanometers) allow the authors to suppose the presence of rhodopsin-like pigment ...
