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Farranula rostrata

Claus (1863)

Download a fact sheet for Farranula rostrata (PDF 332KB)


Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Subclass Copepoda
Order Cyclopoida
Family Corycaeidae
Genus Farranula
Species rostrata


  • Female: 0.70 – 0.87 mm
  • Male: 0.61 – 0.78 mm

Distinguishing characteristics

  • Cuticular lenses
  • Urosome somites and caudal rami form
  • Females have very short caudal rami


  • Very difficult to identify
  • Urosome over 3 times as long as caudal rami
  • Genital somite 3 times as long as wide
  • Caudal rami 3 times as long as wide


  • 2 plumose or spiny setae at base of A2
  • Prosome 2 segmented
  • Beak like keel on ventral surface
  • P4 with no trace of endopod, 1 naked seta at the base
  • Urosome 1 segmented
  • Urosome 4 times as long as caudal rami
  • Caudal rami short, almost 2 times as long as wide




  • Bradford-Grieve, J. M., E. L. Markhaseva, et al. (1999). Copepoda. South Atlantic Zooplankton. D. Boltovskoy. Leiden, The Netherlands, Backhuys Publishers. 1: 869-1098.
  • Dahl, M. (1912). "Die Copepoden der Plankton-exhibition: I. Die Corycaeinen, mit berucksichtigen aller bekannten Arten."
  • Tanaka, O. (1957). "On copepoda of the family Corycaeidae in Japanese waters." Journal of the Faculty of Agriculture, Kyushu University 11(1): 77-97.