1. Meguro Parasitological Museum, 4–1–1 Shimomeguro, Meguro-ku, Tokyo 153–0064, Japan
2. Department of Animal Sciences, Teikyo University of Science, 2–2–1 Senju-Sakuragi, Adachi-ku, Tokyo 120–0045, Japan
3. Jutoku-kai Animal Medical Center, 107 Haruki-otogai, Togo-cho, Aichi-gun, Aichi 470–0162, Japan
4. Research Group on Monkeys in Miyagi Prefecture, 16–1 Akasaka, Imozawa, Aoba-ku, Sendai, Miyagi 989–3212, Japan