Warning message Node revision 1833 not found in node Composition and Structure of the Ventriculitidae (Porifera, Hexactinellida) Family. Perharps it was deleted. Node revision 1833 not found in node On the Genus Balantionella Schrammen, 1902 (Porifera, Hexactinellida). Perharps it was deleted. Kuznetsova Nina F. RussiaVoronezhAll-Russian Research Institute of Forest Genetics, Breeding and Biotechnology, 105 Lomonosov St., Voronezh 394087, Russiacandidate of biological sciencesekogenlab@gmail.com Author's articles Droughts in the Forest-Steppe Zone of Central Chernozemic Region and Criteria for Evaluation of their Intensity