1. Department of Invertebrate Zoology Faculty of Biology Saint Petersburg State University Universitetskaya nab. 7/9 Saint Petersburg 199034 Russia
2. Laboratory of Cellular and Molecular Protistology Zoological Institute RAS Universitetskaya nab. 1 Saint Petersburg 199034 Russia
3. Department of Environment and Energy Engineering Kyungnam University Changwon, Kyungnam 51767 Korea