Pseudochirella magna   (Wolfenden,  1911) (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Size: length 6.0-6.6 mm.

In the 1st antenna, from segments 1 to segment 17 there is an increase in length; segment 18 is the same length in the two stages of development; and from segment 19 to 25 inclusive there is a diminution in the length of each segment as the animal passes from the immature to the adult stage.
The 2nd antenna bears a row of long hairs on the 1st basal segment.
In the 1st maxilla, the 1st lobe bears 13 setae, the 2nd and 3rd inner lobes each bear 4 setae, the basal segment bears 4 and the endopod appears to carry 11, 3, 3 and 5 respectively on the three segments.
In the maxilliped the 1st basal segment shows a rounded swelling at the proximal end of the posterior margin. It is smooth and devoid of spine. The anterior margin is deeply concave between lobes 2 and 3; a single seta arises from lobe 2 and at its base and for a short distance on the further side of it the margin is armed with minute spinules. Lobe 3 is somewhat produced and bears 2 setae; its surface is beset with small spinules. The 2nd basal segment bears a short row of spinules along its anterior margin near the proximal end; these spinules are set in two or more rows of which those of the most anterior are the larger. The segments of the endopod bear respectively 4, 4, 3, 3 and 4 setae, and in addition a small seta arises from the external aspect of segment 4.
In the 4th swimming leg, there is a transverse row of hair-like spines running across the posterior aspect of the 1st basal segment.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• INDIA (Record: 23/04/1924)

Literature Source(s)
  • Manakadan, R and Pittie, A (2002) Standardized english and scientific names of the Indian subcontinent-2002 Newsletter for Birdwatchers S. Sridhar 42 p 35
  • Sewell, RBS (1999) The copepoda of Indian seas Biotech Books, Delhi, India 407 pp 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:2010-09-24

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