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Centropages orsinii

Giesbrecht (1889)

Download a fact sheet for Centropages orsinii (PDF 557KB) 


Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Subclass Copepoda
Order Calanoida
Family Centropagidae
Genus Centropages
Species orsinii


  • Female: 1.40 - 1.60 mm
  • Male: 1.25 - 1.30 mm

Distinguishing characteristics

  • P5 and genital somite form
  • Posterior borders of prosome are weakly pointed in female


  • Posterior corners of prosome hardly pointed
  • Terminal claw on right P5 longer than the appendage on exopodal segment 2 (thumb)
  • Terminal exopodal segment of left P5 ends in a spine


  • A1 to end of caudal rami, no spines on segments 1, 2, 5
  • P5 nearly symmetrical. Left P5 exopodal segment 2 inner spine curved, usually bordered by small spines
  • Genital somite symmetrical, offset, backward pointed spine on ventral surface
  • Caudal rami are twice as long as wide


  • Epipelagic
  • Coastal, oceanic
  • Indian and Pacific, not Atlantic
  • Tropical, subtropical


  • Forms swarms, sometimes as part of a multi-species assemblage
  • Herbivorous, feeding on mixed phytoplankton species
  • Little is known about the ecology of this species


Bradford-Grieve, J. M., (1999). The marine fauna of New Zealand: pelagic calanoid copepoda: Bathypontiidae, Arietellidae, Augaptilidae, Heterorhabdidae, Lucicutiidae, Metridinidae, Phyllopodidae, Centropagidae, Pseudodiaptomidae, Temoridae, Candaciidae, Pontellidae, Sulcanidae, Acartiidae, Tortanidae. National Institute of Water and Atmospheric Research, Wellington, New Zealand.

Chen Q. C. & Zhang S. Z, (1965). The planktonic copepods of the Yellow Sea and the East China Sea. I. Calanoida. Studia mar. sin., 7: 20-131. (Chinese with English summary).

Giesbrecht W., 1893 ["1892"]. Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres- Abschnitte. Fauna u. Flora Golf. Neapel, 19: 1-831, pls. 1-54. (After Böttger-Schnack (pers. comm., 2009), publication year of Giesbrecht´s monography on the pelagic copepods of the Gulf of Naples should be cited as Giesbrecht 1893 ["1892"]. For an explanation, see the note of Ruth Böttger-Schnack in the family site of Oncaeidae in the WoRMS database. For practical reasons, the only date of 1892 is maintained throughout the text.).

Mulyadi, (1998). New records and taxonomic reexamination of the genus Centropages (Copepoda: Calanoida), with notes on their geographic distribution in Indonesian waters. The Raffles Bulletin of Zoology, 46 (1): 53-70.

Razouls C., de Bovée F., Kouwenberg J. et Desreumaux N., 2005-2009. Diversity and Geographic Distribution of Marine Planktonic Copepods. Available at

Shek & Liu (2010)