Systematic study of the phylum Nemertea based on mitochondrial genome sequences

• Project/Area Number: 20770061
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Biodiversity/Systematics
• Research Institution: Hokkaido University
• Principal Investigator: KAJIHARA Hiroshi Hokkaido University, 大学院・理学研究院, 助教 (30360895)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 体系学 / 分子系統解析 / 紐形動物 / 系統 / 分類 / 形態形質

Research Abstract

A taxonomic revision on a monostiliferous hoplonemertean genus was carried out based on molecular phylogeny and observations of actual type specimens. In addition, a catalogue of nemertean genera and species was compiled, a new species of bathypelagic polystiliferous hoplonemertean was described, and a heteronemertean was reported from Japanese waters for the first time. A new morphological character with respect to the cephalic blood vascular system was discovered in a group of palaeonemerteans.

Research Products

• [Journal Article] Systematics and phylogeny of the hoplonemertean genus Diplomma (Nemertea) based on molecular and morphological evidence. (2010)
  • Author(s): Kajihara, H., Olympia, M., Kobayashi, N., Katoh, T., Chen, H. -X., Strand, M., Sundberg, P.
  • Journal Title: Zoological Journal of the Linnean Society (掲載受理)
  • Peer Reviewed
• [Journal Article] Dinonemertes shinkaii sp. nov. (Nemertea: Hoplonemertea: Polystilifera: Pelagica), a new species of bathypelagic nemertean (2010)
  • Author(s): Kajihara, H., Lindsay, D.J.
  • Journal Title: Zootaxa 2429巻 Pages: 3-51
  • Peer Reviewed
• [Journal Article] A new species of Nesotanais Shiino, 1968 (Crustacea, Tanaidacea) from Japan, with a key to species and a note on male chelipeds. (2010)
  • Author(s): Kakui, K., Kajihara, H., Mawatari, S.F.
  • Journal Title: ZooKeys 33巻 Pages: 1-17
  • Peer Reviewed
• [Journal Article] Systematics and phylogeny of the hoplonemertean genus Diplomma(Nemertea)based on molecular and morphological evidence (2010)
  • Author(s): Kajihara, H.
  • Journal Title: Zoological Journal of the Linnean Society (accepted)
  • Peer Reviewed
• [Journal Article] Rhynchocoel vessel in Cephalotrichidae(Nemertea : Palaeonemertea) (2010)
  • Author(s): Kajihara, H.
  • Journal Title: Journal of Natural History (accepted)
  • Peer Reviewed
• [Journal Article] Dinonemertes shinkaii sp.nov., a new species of bathypelagicnemertean(Nemertea : Hoplonemertea : Polystilifera : Pelagica) (2010)
  • Author(s): Kajihara, H.
  • Journal Title: Zootaxa (in press)
  • Peer Reviewed
• [Journal Article] Baseodiscus hemprichii (phylum Nemertea) from Phuket, Thailand. (2009)
  • Author(s): Kajihara, H., Kato, T.
  • Journal Title: Phuket Marine Biological Center Research Bulletin 69巻 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Character-matrix based descriptions of two new nemertean (Nemertea) species. (2009)
  • Author(s): Sundberg, P., Chernyshev, A.V., Kajihara, H., Kanneby, T., Strand, M.
  • Journal Title: Zoological Journal of the Linnean Society 157巻 Pages: 264-294
  • Peer Reviewed
• [Journal Article] Three new species of free-living marine nematodes (Nematoda: Enoplida) from northern Japan. (2009)
  • Author(s): Shimada, D., Kajihara, H., Mawatari, S.F.
  • Journal Title: Species Diversity 14巻 Pages: 137-150
  • NAID: 110008511413
  • Peer Reviewed
• [Journal Article] Character-matrix based descriptions of two new nemertean(Nemertea)species (2009)
  • Author(s): Sundberg, P.
  • Journal Title: Zoological Journal of the Linnean Society 157 Pages: 264-294
  • Peer Reviewed
• [Journal Article] Baseodiscus hemprichii(phylum Nemertea)from Phuket, Thailand (2009)
  • Author(s): Kajihara, H.
  • Journal Title: Phuket Marine Biological Center ResearchBulletin 69 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Checklist of nemertean genera and species published between 1995 and 2007 (2008)
  • Author(s): Kajihara, H., Chernyshev, A.V., Sun, S. -C., Sundberg, P., Crandall, F.B.
  • Journal Title: Species Diversity 13巻 Pages: 245-274
  • NAID: 110008511391
  • Peer Reviewed
• [Journal Article] Morphology of Lineopselloides albilineus (Nemertea: Heteronemertea: Lineidae) from Japanese waters, with complementary redescription of the holotype (2008)
  • Author(s): Kajihara, H., Ise, Y.
  • Journal Title: Bulletin of the Kitakyushu Museum of Natural History and Human History, Series A (Natural History) 6巻 Pages: 1-12
  • NAID: 130008047833
  • Peer Reviewed
• [Journal Article] Checklist of nemertean genera and species published between 1995 and 2007 (2008)
  • Author(s): Kajihara, H
  • Journal Title: Species Diversity 13 Pages: 245-274
  • NAID: 110008511391
  • Peer Reviewed
• [Journal Article] Morphology of Lineopsellbides albilineus (Nemertea : Heteronemertea : Lineidae) from Japanese waters, with complementary redescription of the holotype (2008)
  • Author(s): Kajihara, H
  • Journal Title: Bulletin of the Kitakyushu Museum of Natural History and Human History, Series A (Natural History) 6 Pages: 1-12
  • Peer Reviewed
• [Journal Article] Rhynchocoel vessel in Cephalotrichidae (Nemertea: Palaeonemertea).
  • Author(s): Kajihara, H.
  • Journal Title: Journal of Natural History (掲載受理)
  • Peer Reviewed
• [Presentation] Identity of the toxic Cephalothrix sp. (Nemertea: Palaeonemertea) from Hiroshima Bay, Japan, with comparative anatomy of the blood vascular system among congeners. (2009)
  • Author(s): Kajihara, H., Ito, K., Chen, H., Sun, S., Asakawa, M.
  • Organizer: 第7回紐形動物学国際会議
  • Place of Presentation: カリフォルニア
  • Year and Date: 2009-07-03
• [Presentation] 広島湾産フグ毒蓄積性ヒモムシの正体とホソヒモムシ類血管系の比較解剖学 (2009)
  • Author(s): 柁原宏、伊藤克敏、陳海霞、孫世春、浅川学
  • Organizer: 日本動物分類学会第45回大会
  • Place of Presentation: 名古屋
  • Year and Date: 2009-06-13
• [Presentation] Identity of the toxic Cephalothrix sp.(Nemertea : Palaeonemertea)from Hiroshima Bay, Japan, with comparative anatomy of the blood vascular system amongcongeners (2009)
  • Author(s): Kajihara, H.
  • Organizer: 7th International Conference on Nemertean Biology
  • Place of Presentation: サンタバーバラ(アメリカ)