[The morphology of amphibian skins: comparison between some species in different natural habitats].

A comparison in the morphology of the skin in different species of Amphibians has been performed in this note. Species examined had different natural habitat: some of them were closely dependent on a watery environment (Proteus anguinus, Triturus cristatus, Rana esculenta and R. graeca), whereas others were more or less adapted to life on land (Rana dalmatina, Salamandra salamandra, Bufo bufo, B. viridis and Hyla arborea). Structural patterns of both epidermis and derm varied from species to species; namely differences in the thickness of both epidermis and loose and compact layers of the derm have been found, as well as variations in the keratinization processes. Such findings reveal in each species distinctive features of the skin, related to either a watery or to a water-free environment.