1. Institute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
2. NITE Biological Resource Center (NBRC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusa-kamatari, Kisarazu-shi, Chiba 292-0818, Japan
3. Coastal Branch, Natural History Museum and Institute, 123 Yoshio, Katsuura, Chiba 299-5242, Japan