1. The University Museum, The University of Tokyo; Tokyo Japan
2. Department of Biological Sciences, Graduate School of Science; The University of Tokyo; Tokyo Japan
3. Department of Vertebrate Zoology, Institute of Ecology and Biological Resources and Graduate; University of Science and Technology, Vietnam Academy of Science and Technology; Hanoi Vietnam
4. Kamine Zoo; Hitachi Ibaraki Japan
5. Izu Shaboten Zoo; Ito Shizuoka Japan