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UTAS Home > IMAS Home > Image Key > Copepoda > Calanoida > Temoridae >  Temora discaudata

Temora discaudata

Giesbrecht (1889)

Download a fact sheet for Temora discaudata (PDF 347KB)


Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Subclass Copepoda
Order Calanoida
Family Temoridae
Genus Temora
Species discaudata


  • Female: 1.69 - 2.00 mm
  • Male: 1.70 - 1.97 mm

Distinguishing characteristics

  • ‘teardrop’ body shape
  • Cephalosome is typically widest and deepest part of the prosome
  • Form of P5
  • Anal somite and long, slender caudal rami are asymmetrical
  • Females similar to T. stylifera, juvenile T.discaudata have an extension of the cephalosome laterally over the prosome somites, which is similar to the segment arrangement found in adult T.stylifera, however in adult T.discaudata the cephalosome extension is not present


  • Right A1 geniculate
  • Last prosome somite pointed and slightly symmetrical
  • Thumb-like process on basis of left P5 is wide, the terminal segment is flattened and has 4 marginal spines
  • Terminal segment of right P5 is hook-like and sharply bent backwards
  • Urosome almost symmetrical, with long slender caudal rami


  • Quite a large robust species
  • Posterior prosome somite produced into spines
  • Inner spine of P5 segment 3 longer than the 2 terminal spines, which are almost equal in length
  • Anal somite and long slender caudal rami are asymmetrical




  • 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.
  • Conway DVP, White, R.G., Hugues-Dit-Ciles, J., Gallienne, C.P. and Robins, D.B. (2003) Guide to the coastal and surface zooplankton of the south-western Indian Ocean, Vol Occasional Publications No. 15. Marine Biological Association of the United Kingdom.