A New Species of Hemicyclops (Crustacea: Copepoda: Cyclopoida) Found in Plankton at the Mouth of the Jiulong River, Southern China

• Ohtsuka Susumu

  Takehara Marine Science Station, Setouchi Field Science Center, Graduate School of Biosphere Science, Hiroshima University

• Tomikawa Ko

  Graduate School of Education, Hiroshima University

• Shang Xu

  School of Environment and Public Health, Wenzhou Medical College

Abstract

A new species of the cyclopoid copepod genus Hemicyclops, H.xiamenensis, is described from plankton sampled at the mouth of the Jiulong River, southern China. This is the second species of the genus occurring in Chinese waters. The new species is readily distinguishable from its congeners by a combination of features of the fourth pediger, female genital double-somite, caudal ramus, and appendages. Because adults of Hemicyclops are ordinarily associated with benthic animals, the planktonic occurrence of the new species may be interpreted as either, 1) a new mode of life involving diel migration, 2) host switching between day and night, or 3) accidental occurrence.

Journal

• Species Diversity

  Species Diversity 15 (1), 41-50, 2010

  The Japanese Society of Systematic Zoology

Keywords

• Crustacea
• Copepoda
• Hemicyclops
• plankton
• China
• Xiamen

Details

• CRID: 1390001204459692032
• NII Article ID: 110008440326
• NII Book ID: AA11114903
• DOI: 10.12782/specdiv.15.41
• ISSN: 21897301
• ISSN: 13421670
• NDL BIB ID: 10672890
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10672890
• Web Site: https://www.jstage.jst.go.jp/article/specdiv/15/1/15_KJ00007016595/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed