Calanopia thompsoni   Scott A.,  1909 (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Size: Length 1.95-2.62 mm (female), 2.19-2.31mm (male).

Prosome ovate, elongate and slender, cephalon with lateral hooks. Thoracic segment produced posteriorly into strong process. Urosome is 2-segmented.
Female: Lateral hooks on cephalosome. Strong spines on last metasome segment, reaching half way down genital segment. Genital segment slightly longer than the second urosome segment. Genital segment ventrally is produced anteriorly and posteriorly into 2 blunt lobes. Furca slightly asymmetrical, longer on left. Endopodite of 2 segments, first one moderately long with distal portion of outer margin with 2 very strong spines. Second segment narrow, terminating in a long stout spine, serrated on both edges, segment also with 2 outer marginal spines and a short inner one.
Male: Lateral hooks on cephalosome, forehead angular in outline. Posterior metasome segment sharply pointed.

Synonym (s)
Calanopia thompsoni Scott, 1909
(Senior synonym)
Calanopia thompsoni A. Scott, 1909
Calanopia thompsoni Sewell, 1912
Calanopia thompsoni Sewell, 1914

Common Name (s)
Economic Importance and Threats

Habitat:  Pelagic, Demersal, Coastal


• Kerala, Off Trivandrum Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands, Nicobar, Nankauri Harbour INDIA (Record: 1910-1925)
• Gujarat, Saurashtra Coast (Lat: 20.84) (Long: 68.83) INDIA
• Gujarat, Saurashtra Coast (Lat: 22.50) (Long: 70.33) INDIA
• Andhra Pradesh, Lawsons Bay INDIA

Literature Source(s)
  • Singh, LAK and Sharma, RK (1986) Gangetic dolphin, Platanista gangetica Journal of the Bombay Natural History Society 82(3) 648-653
  • Conway, DVP; White, RG; Hugues-Dit-Ciles, J; Gallienne, CP and Robins, DB (2003) Guide to the coastal and surface zooplankton of the south western Indian Ocean Occasional publication no 15 Marine Biological Association of the United Kingdom Occasional Publication of the Marine Biological association of the United Kingdom 354 pp Available at -
  • Madhupratap, M and Haridas, P (1986) Epipelagic calanoid copepods of the Northern Indian Ocean Copepod 105-117 Available at - NIO, RC Kochi
  • Saraswathy, M (1966) Pelagic Copepods from the inshore waters Off Trivandrum Coast Proceedings of Symposium on Crustacea Marine Biological Association of India, Mandapam Camp Part-I 74-106 Available at - NIO, Goa
  • Ummerkutty, ANP (1965) Observations on the breeding and seasonal abundance of ten species of planktonic copepods of the Gulf of Mannar Symposium on Crustacea Marine Biological Association of India, Mandapam Camp part II 685-697 Available at - Library, CASMB, Parangipettai
  • Othman, BHS and Toda, T (2006) Pontellid copepods from Singapore Coastal Marine Science 30(1) 305-319
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Sealifebase Available at -
  • Sewell, RBS (1999) The copepoda of Indian seas Biotech Books, Delhi, India 407 pp Available at - NIO, Goa
  • Patel, MI (1975) Pelagic copepods from the inshore waters off Saurashtra Coast. Journal of the Marine Biological Association of India Marine Biological Association of India, Cochin 17(3) 658-663 Available at - NIO, Goa
  • Ganapati, PN and Shanthakumari, K (1961) The systematics and distribution of planktonic copepods in the Lawson's bay, Waltair Journal of the marine biological association of India The marine biological association of India 3(1&2) 6-18 Available at - NIO, Goa

Page last updated on:2011-05-19

Back to Search