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Does Diurodrilus form a new phylum?

Research Project

Project/Area Number 25650133
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biodiversity/Systematics
Research InstitutionHokkaido University

Principal Investigator

KAJIHARA Hiroshi  北海道大学, 理学(系)研究科(研究院), 准教授 (30360895)

Co-Investigator(Kenkyū-buntansha) SHIMANO Satoshi  法政大学, 国際文化学部, 教授 (70355337)
KIMURA Atsushi  北海道大学, 大学院理学研究院, 准教授 (90422005)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords海産無脊椎動物 / 間隙動物 / 環形動物 / 系統分類学 / 間隙性動物 / 原始環虫類 / 分子系統解析 / 分類学
Outline of Final Research Achievements

More than 20 animal phyla are known from minute environment between sand particles in beaches. A number of interstitial species are known in the phylum Annelida, a group that is mainly comprised of lugworms, earthworms, and leaches. At the onset of this study, 11 species in eight genera of interstitial annelids had been reported from Japanese waters. No representative of the genus Diurodrilus had been known in Japan, but there is an undescribed form in Ishikari Beach, Hokkaido. This study aimed to test the phylum affiliation of such interstitial annelids as Diurodrilus and Trilobodrilus, which was doubted by previous studies. The conclusion, however, was that both groups actually belong to the phylum Annelida.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (3 results)

All 2015 2014 2013

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (1 results)

  • [Journal Article] Trilobodrilus itoi sp. nov., with a redescription of T. nipponicus (Annelida: Dinophilidae) and a molecular phylogeny of the genus2015

    • Author(s)
      Kajihara, H., Ikoma, M., Yamasaki, H., Hiruta, S. F.
    • Journal Title

      Zoological Science

      Volume: 32

    • NAID

      120005828486

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Records of the poorly known ribbon worm Nipponnemertes ogumai (Nemertea: Monostilifera) and its phylogenetic position.2014

    • Author(s)
      Kajihara, H., Nishi E., Kawabata, M., Kohtsuka, H., Uyeno, D.
    • Journal Title

      Marine Biodiversity

      Volume: - Issue: 2 Pages: 1-8

    • DOI

      10.1007/s12526-014-0252-1

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 北海道産Diurodrilus属(動物門不明)の1未記載種について2013

    • Author(s)
      生駒真帆・柁原宏
    • Organizer
      日本動物分類学会第49回大会
    • Place of Presentation
      宮城教育大学、仙台市
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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