Yamaguchi works on the Evolutionary systematic of barnacles using morphology, ecology, biogeography, enzyme electrophoresis, and nucleotide sequences of DNA as well as fossil record. Before 1988, I was mainly studying on the shallow marine fossils including extinct and extant barnacles. After 1989, I have changed to study on the deep-sea hydrothermal barnacles that are the most primitive living extant as "living fossil" and have fossil record from early Tertiary or Cretaceous in age. Sometimes I participate dives by the Japanese submersible "Shinkai 2000 and 6500" and ROV to deep-sea hydrothermal fields.
Yamaguchi is a member of the Paleontological Society of Japan (http://www.museum.kyoto-u.ac.jp/palsoc.htlm), from which he received an award for the best paper in 1978, in addition to a medal for excellence in scholarship in 1987. My other memberships consist of the Paleontological Society (USA), the Crustacean Society (USA), Japanese Society of Carcinology, Japanese Society of Systematic Zoology (http://wwwsoc.nii.ac.jp/jssz2/), the Japanese Society of Benthology (http://wwwsoc.nacsis.ac.jp/jab/), the Sessile Organisms Society of Japan. I was a chief-in-Editor of the Sessile Organisms Society of Japan (http://wwwsoc.nii.ac.jp/sosj/index.shtml) for four years from 2002 to 2005 after the President of the Society, and am still a member of editorial board of the Society..
Present address: Department of Biological Sciences,
Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratuka City,
Kanagawa 259-1293, Japan.
Phone international + 81-463-59-4111 ex. 2242,
Facsimile
international
+ 81-463-58-9688.
Email: toshi-yamaguchi \ kanagawa-u.ac.jp