Skorinov Dmitriy V. RussiaSt. PetersburgInstitute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky Prospekt, St. Petersburg 194064, Russiaskorinovd@yandex.ru Author's articles Hybridization and distribution of cryptic species of green toads (Bufotes) (Bufonidae, Amphibia) in Republic of Dagestan (Russia)