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Ｏ1 A new fossil kogiid whale from the Middle Miocene Togane Formation,
Shimane, Japan. Hiroto Ichishima (Fukui Prefectural Dinosaur Museum).
Ｏ2 The relation between human and catacean in prehistoric Hokkaido. Eisuke Yokoyama (Private Office of Hokkaido Archaeology), and Tetsuo Hiraguchi
(Kanazawa Medical University).
Ｏ3 Harbour porpoises Phocoena phocoena incidentally caught by the set nets in Funka bay, Hokkaido, Japan Ⅲ.
Takashi Matsuishi, Tomoko Ishigami, and Nagisa Sakamoto (Hokkaido University).
Ｏ4 Ovarian history of a young harbor porpoise, Phocoena phocoena, caught off the coast of Funka Bay, southern Hokkaido. Yoshiharu Honma, Tatsuo Ushiki, Masaei Takeda (Niigata University Graduate School of Medical and Dental Sciences), and Takashi Matsuishi (Graduate School of Fisheries Sciences, Hokkaido Univeristy).
Ｏ5 The study on perception of passability between interspaces by a harbor
porpoise (Phocoena phocoena) from ecological approach. Kiyohide Ito (Future University), Takashi
Matsuishi (Hokkaido University), Shigetoshi Nishiwaki (The institute Cetacean
Research), Masato Sasaki (University of Tokyo), and Mamoru Aoki (Otaru
Aquarium).
Ｏ6 Occurrence of gray whale Eschrichtius robusutus, in Tokyo Bay in May 2005. Hisao Nambu (Toyama Science Museum), Kouji Tokutake (Yokohama Hakkeijima
Seaparadise), Hajime Ishikawa（Institute of Cetacean Research）, Mareo
Ohta (Hokuriku Underwater Pictures）, Kenichiro Fujita (6 Dorsals Kayak
Services), and Tadasu K. Yamada (National Science Museum).
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