*Ryosei Sato¹, Takuma Kitanishi², Gautam Agarwal³ (1. Dept Math/Statistics, Pomona College, Claremont, California, 2. Grad Sch Arts & Sci, Dept of Life Sci, Univ of Tokyo, Tokyo, Japan, 3. Dept Nat Sci, Pitzer and Scripps Colleges, Claremont, California)