was a Japanese

zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...

. He published over 200 scientific articles on marine animals such as

chaetognaths The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, they are mostly pelagic; however about 20% of the known species ...

ctenophore Ctenophora (; : ctenophore ) is a phylum of marine invertebrates, commonly known as comb jellies, that inhabit sea waters worldwide. They are notable for the groups of cilia they use for swimming (commonly referred to as "combs"), and they ar ...

s, and

tunicate Tunicates are marine invertebrates belonging to the subphylum Tunicata ( ). This grouping is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates). The subphylum was at one time ...

s. He was Professor of

Zoology Zoology ( , ) is the scientific study of animals. Its studies include the anatomy, structure, embryology, Biological classification, classification, Ethology, habits, and distribution of all animals, both living and extinction, extinct, and ...

Kyoto University , or , is a National university, national research university in Kyoto, Japan. Founded in 1897, it is one of the former Imperial Universities and the second oldest university in Japan. The university has ten undergraduate faculties, eighteen gra ...

working at the Seto Marine Biological Laboratory in Shirahama, Japan. From 1975 to 1977, he was the Director of SMBL.

Eponymous species

At least a dozen species are named in his honor,Biographical Etymology of Marine Organism Names http://www.tmbl.gu.se/libdb/taxon/personetymol/petymol.tu.html including these below. *''Acartia tokiokai'' Mori, 1942 -

Copepoda Copepods (; meaning 'oar-feet') are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic (living in the water column), some are benthic (living on the sediments), several species have ...

*''Atlanta tokiokai'' van der Spoel & Troost, 1972 -

Heteropoda ''Heteropoda'' is a genus of spiders in the family Sparassidae (the huntsman spiders). They are mainly distributed in tropical Asia and Australia, while at least one species, ''H. venatoria'', has a cosmopolitan distribution,Airamé, S. and P. ...

*''Bolivina tokiokai'' Uchio, 1962 - Formanifera *''Eudistoma tokiokai'' Nishikawa, 1990 -

Ascidiacea Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer test or "tunic" made of the polysacchari ...

*''Euchromadora tokiokai'' Wieser, 1955 -

Nematoda The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitism, parasitic. Parasitic ...

*''Krohnittella tokiokai'' Bieri, 1974 -

Chaetognatha The Chaetognatha or chaetognaths (meaning ''bristle-jaws'') are a phylum of predatory marine worms that are a major component of plankton worldwide. Commonly known as arrow worms, they are mostly pelagic; however about 20% of the known species ...

*''Ophiocentrus tokiokai'' Irimura, 1981 -

Ophiuroidea Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomot ...

*''Polycarpa tokiokai'' Monniot & Monniot, 1996 -

*''Styela tokiokai'' Nishikawa, 1991 -

References

1913 births 2001 deaths Japanese marine biologists 20th-century Japanese zoologists Academic staff of Kyoto University Marine zoologists Scientists from Yamaguchi Prefecture {{zoologist-stub