Yartsev Vadim V. RussiaTomskNational Research Tomsk State University, 36 Lenin Prosp., Tomsk 634050, Russiavadim_yartsev@mail.ru Author's articles HISTOLOGICAL CHARACTERISTICS OF THE SKIN OF SALAMANDRELLA KEYSERLINGII (CAUDATA, HYNOBIIDAE) MALES IN THE AQUATIC AND TERRESTRIAL PHASES OF THEIR SEASONAL CYCLE