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Farranula gibbula

Giesbrecht (1891)

Download a fact sheet for Farranula gibbula (PDF 389KB)


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


  • Female: 0.83 – 1.10 mm
  • Male: 0.80 – 0.96 mm

Distinguishing characteristics

  • Cuticular lenses
  • Genital somite form


  • Very difficult to identify
  • Usually determined from C. concinna by size, i.e. C. gibbula are bigger


  • 2 plumose or spiny setae at base of A2
  • Prosome 2 segmented
  • Prosome points < half genital somite
  • Dorsal hump on second prosome segment
  • Prosome 2.5 times longer than urosome
  • Beak like keel on ventral surface
  • P4 with no trace of endopod, 1 naked seta at the base
  • Urosome 1 segmented
  • Urosome somites 1.7 times as long as caudal rami
  • The middle part of genital somite swollen, fattest part of somite is below the mid portion
  • Genital somite with a lot of hairs on the proximal ventral part
  • Caudal rami >3 times longer than 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.