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Isao Ijima

Japanese zoologist and spongiologist From Wikipedia, the free encyclopedia

Isao Ijima
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Isao Ijima (飯島魁, Iijma Isao; July 24, 1861 – March 14, 1921) was a Japanese zoologist known for his studies of sponges (Porifera) — including his circumscription of the genus Staurocalyptusleeches (Hirudinea), flatworms (Turbellaria), birds, and fish.[1][2] Professor of Zoology at Tokyo Imperial University, he is considered the founder of parasitology in Japan and was the first President of the Ornithological Society of Japan.[1] Taxa named in his honour include Ijima's sea snake[3] and Ijima's leaf warbler.[4][5]

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Born in Hamamatsu in 1861 into a samurai family of Hamamatsu Domain, at the age of fifteen he entered the Kaisei Gakkō school [ja] in Tokyo, before enrolling as a student in the Science College at the Imperial University, Tokyo in 1878.[1][2] There he studied under Edward Sylvester Morse and Charles Otis Whitman.[2] In 1879, together with Sasaki Chūjirō [ja], both having previously received training from and assisted Morse in his exploration of the Ōmori Shell Mounds, Ijima excavated the Okadaira Shell Mound; this is credited with being the first modern archaeological survey conducted solely by Japanese.[6][7][8] Upon graduation in 1881, as one of three from the first cohort in the Department of Zoology, he became an assistant in the College.[1][2] The next year he went to Germany to study zoology at the University of Leipzig, where he spent three years working under the direction of Doctor Rudolf Leuckart; he was awarded his Ph.D. in 1884.[1]

Returning to Japan in 1886, at the age of 25 he was appointed Professor of Zoology at the Imperial University, Tokyo, where he remained until his death.[1][2] In 1893, with the description of Parus owstoni (now Sittiparus owstoni or Owston's tit), he became the first zoologist from Japan to describe a bird.[9]:276[10] In 1903, he was involved in the establishment of Sakai Aquarium [ja] and in 1904 he was appointed the second director of the Misaki Marine Biological Station [ja].[2][11] In 1912, he was the founding president of the Ornithological Society of Japan.[2] In 1918, he published his influential A Manual of Zoology (動物学提要, Dōbutsu-gaku Teiyō).[2][12] In his personal life, Ijima enjoyed hunting, shooting, fishing, wine, and smoking a pipe.[1] He died in 1921.[1]

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