Undinula darwini var. intermedia   Sewell  (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Image copyrights: Biotech Books

a. Posterior thoracic margin and abdomen, left side (female), b. Mandible, c. The 3rd swimming leg, d. The 5th leg (female)

The thoracic margin on the left side is produced backwards in a flap. It is much smaller and is triangular; there are in addition certain small but apparently consistent differences in the structure of some of the appendages.
The 1st antenna consists of twenty-four segments, segments 8 and 9 being fused. A row of minute spinules has been detected running across the surface of segments 3 to 8 inclusive. In the 5th swimming leg, the external marginal spine on the 1st segment of the exopod is very considerably smaller and only reaches about half-way to the level of the origin of the marginal spine on the 2nd segment, and the spines on the inner margin of the 1st basal segment are distinctly larger and also at the two ends of the row the spines are distinctly larger than the rest. There are about 30 spines in the row.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• INDIA (Record: 1910-1925)
• Gujarat, Saurashtra Coast (Lat: 20.84) (Long: 68.83) INDIA
• Gujarat, Saurashtra Coast (Lat: 22.50) (Long: 70.33) INDIA

Literature Source(s)
  • 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 - http://www.marinespecies.org
  • Thompson, PKM (1990) Ecology of the neritic and oceanic cyclopoid copepods along the southwest coast of India and the Laccadive sea Journal of marine biological association of india Cochin, India 32(1, 2) 38-65 Available at - http://eprints.cmfri.org.in/1095/

Page last updated on:2011-02-01

Back to Search