Hironori Komatsu, Ph.D. (2002), National Museum of Nature and Science, Tokyo, is Curator of Crustacea. Specialty: taxonomy of crabs. Junji Okuno, M.Sc., Coastal Branch of Natural History Museum and Institute, Chiba, is Senior Curator of Crustacea. Specialty: taxonomy of shrimps and hermit crabs. Kouki Fukuoka, Ph.D., Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, is Researcher of Marine Ecosystem. Specialty: taxonomy of mysids.