1. Shanghai Natural History Museum, Branch of Shanghai Science and Technology Museum, Shanghai, P. R. China; e-mail:
2. Department of Oceanography, National Sun Yat-Sen University, Kaohsiung, Taiwan, R. O. China; e-mail:
3. Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Liběchov, Czech Republic; e-mail:
4. Hainan Academy of Ocean and Fisheries Sciences, Institute of Freshwater Fishery, Haikou, P. R. China; e-mail:
5. Xinyang Agriculture and Forestry University, Xinyang, P. R. China; e-mail: