Taxa, Proceedings of the Japanese Society of Systematic Zoology

Taxa, Proceedings of the Japanese Society of Systematic Zoology

Online ISSN : 2189-7298
Print ISSN : 1342-2367

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Volume 27

Displaying 1-14 of 14 articles from this issue

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages App1-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_App1

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Life history diversity in echinoderms, and its significance for systematics

Mieko Komatsu

Article type: Article
2009 Volume 27 Pages 1-16
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_1

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Echinoderms display a great range of life histories, which my students, colleagues, and I have documented though our studies of 42 species, including one echinoid, one holothuroid, four ophiuroids, and 36 asteroids. Here, the general features of echinoderm reproduction are reviewed as they concern the following topics: pairing behavior, brooding, sexual dimorphism, dioecism/hermaphroditism, and others. Larval form in these echinoderms has been modified in various ways through adaptation to planktonic, benthic, intra-gonadal, or intra-gastric larval habitats. The elucidation by Kanatani of the hormonal control mechanism of reproduction in asteroids has provided a means to investigate various aspects of their life history in detail, especially in the genera Asterina, Astropecten, and Luidia. We have found asteroids that pass through a wrinkled blastula stage, divergences among species of Asterina and Astropectinidae, astropectinid sea stars with a newly discovered barrel-shaped larva, and the limits of occurrence of the non-brachiolarian type of development in the Astropectinidae and Luidiidae. The life history of astropectinid species, including both a bipinnaria and a barrel-shaped larva, differs from that of luiidiids, with only a bipinnaria. On this basis, we suggest that the Astropectinidae and Luidiidae probably do not belong to the same ordinal-level taxonomic group. This result agrees with the 18S rDNA-based asteroid phylogeny previously reported by Matsubara and us.

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A review of the taxonomy of marine Asellota from Japan (Crustacea: Isopoda)

Michitaka Shimomura

Article type: Article
2009 Volume 27 Pages 17-27
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_17

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Current taxonomic studies of marine asellote isopods from Japan are reviewed. Munnidae is a large family in the suborder Asellota including 109 species in six genera known from marine, brackish and fresh water habitat. Six species of Munna and one species of Uromunna in the family were reported from Japan waters. Paramunnidae currently represented 134 valid species belonging to 39 genera. Of these, 22 species of 11 genera were obtained from Japanese waters. Geographical and bathymetric distributions of these asellotes are discussed.

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[title in Japanese]

[in Japanese]

Article type: Article
2009 Volume 27 Pages 29-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_29

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[title in Japanese]

[in Japanese]

Article type: Article
2009 Volume 27 Pages 30-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_30

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[title in Japanese]

[in Japanese]

Article type: Article
2009 Volume 27 Pages 31-32
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_31

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[title in Japanese]

Article type: Bibliography
2009 Volume 27 Pages 33-36
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_33

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages 37-40
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_37

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages 41-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_41

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages 42-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_42

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages 49-50
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_49

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages 51-53
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_51

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[title in Japanese]

Article type: Appendix
2009 Volume 27 Pages App3-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_App3

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[title in Japanese]

Article type: Cover
2009 Volume 27 Pages Cover3-
Published: August 20, 2009
Released on J-STAGE: March 30, 2018

DOIhttps://doi.org/10.19004/taxa.27.0_Cover3

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