Caligus asymmetricus   Kabata,  1965 (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Image copyrights: Marine Biological Association of India

Size: Length 3.5 mm.

Carapace remotely triangular, with projecting frontal plates, lunules as deep as frontal plates. Postero-median lobe about 4 times as broad as lateral lobes and projecting far beyond them. Posterior sinuses fully open. Genital segment swollen, longer than broad, broader behind its hind border nearly transverse. Abdomen nearly squarish, with the anal laminae sunk into it. Sternal fork asymmetrical. Distal segment of exopod of leg 1 very characteristically armed, first claw stout and directed outwards, second and third with large accessory claw and directed backwards. Basal segment of endopod of leg 2 with 4 teeth and second segment with a row of strong teeth, leg 4 3-segmented, last claw about two and a half times as long as the previous.

Parasitic on the gill arches of fishes – Euthynnus affinis and Euthynnus alliteratus.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Kerala INDIA

Literature Source(s)
  • Pillai, NK (1967) Copepods parasitic on Indian marine fishes - A review Proceedings of the symposium on Crustacea Marine Biological Association of India Part V 1556-1680 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-07-01

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