1. Key Laboratory of Experimental Marine Biology; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
2. Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
3. College of Earth Science; University of Chinese Academy of Sciences; Beijing 100049 China
4. Research Centre for Inland Seas; Kobe University; Rokkodai Kobe 657-8501 Japan
5. Laboratory of Marine Organism Taxonomy & Phylogeny; Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
6. Faculty of Biological Science and Research Institute for Basic Science; Wonkwang University; Iksan 570-749 Korea
7. Graduate School of Agricultural Science; Tohoku University; Sendai 981-8555 Japan