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Agetus limbatus

Brady (1883)

Download a fact sheet for Agetus limbatus (PDF 455KB)


Phylum Arthropoda
Subphylum Crustacea
Class Maxillopoda
Subclass Copepoda
Order Cyclopoida
Family Corycaeidae
Genus Agetus
Species limbatus


  • Female: 1.24 - 1.64 mm
  • Male: 1.08 - 1.67 mm

Distinguishing characters

  • Proportional length of urosome somites and caudal rami
  • Female genital somite rhomboidal in shape


  • Cephalosome <2 times as long as wide
  • Large cuticular lenses contiguous
  • The urosome somites and caudal rami in the proportional lengths 52:17:29
  • Genital somite about 1.6 times as long as wide
  • Anal somite 1.5 times as long as wide and ¾ as long as caudal rami


  • 1-segmented urosome is 2 times as long as caudal rami
  • Genital somite rhomboidal in dorsal view


  • Epipelagic ¨C mesopelagic
  • Coastal and oceanic
  • Tropical and subtropical in the Atlantic and Pacific


  • Visual predators using raptorial appendages to capture small prey
  • Prefers water temperatures below 15°C
  • Often co-occurs with A. flaccus


  • 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-Expedition. I. Die Corycaeinen. Mit Berucksichtigung aller bekannten Arten bearb. (Ergebnisse der Plankton-Exp. Bd II. G. f. 1.). Pages: (iv + 136) ¡¡
  • Tanaka, O. (1957[1959]). On copepoda of the family Corycaeidae in Japanese waters 1957. Contx Dep Fish Kyushu Univ 3¡¡