Brachionus quadridentatus   Hermann,  1783 (Rotifer)
Organism information awaits expert curation
Class: Eurotatoria

Image copyrights: The Marine Biological Association of India

Size: Length of lorica 126-203 µm; maximum width of lorica 98-182 µm.

Lorica firm, moderately compressed dorso-ventrally, and divided into dorsal and ventral plates. Occipital margin with six spines, medians longest, curved outwards, and when extra long bent downwards over the head. Laterals longer than intermediates. Mental margin rigid, wavy, elevated, with median notch flanked on either side by a small tooth-like papilla. Postero-lateral spines usually present but their length varies. Ventro-posterior portion of lorica prolonged in the form of tubular foot-sheath around base of retractile foot. Sheath on dorsal side with well defined sub square piece.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine


• Kerala, Eloor INDIA (Record: 08/2000-07/2002)
• Kerala, Mangalavanam INDIA (Record: 08/2000-07/2002)
• Kerala, Kochi Backwaters INDIA (Record: 08/2000-07/2002)
• Kerala, Veli Lake INDIA (Record: 02/1996-01/1997)
• Kerala, Kadinamkulam Lake INDIA (Record: 02/1996-01/1997)
• Tamil Nadu, Pichavaram Mangroves (Lat: 11.45) (Long: 89.8) INDIA (Record: 12/1986-11/1987)
• Kerala, Kochi Fisheries Harbour INDIA (Record: 08/2000-07/2002)
• Kerala, Ernakulam, Market canal INDIA (Record: 08/2000-07/2002)

Literature Source(s)
  • Varghese, M; Krishnan, L and Kuttyamma, VJ (2006) Systematic account on rotifers of the genus Brachionus from Cochin Backwaters Journal of the Marine Biological Association of India The Marine Biological Association of India 48(2) 147-155 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Varghese, M and Krishnan, L (2008) A preliminary study on rotifer fauna of Cochin backwaters, Kerala Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 50(1) 119-121 Available at - NIO, Goa
  • Gopakumar, G and Jayaprakas, V (2003) Community structure and succession of brackishwater rotifers in relation to ecological parameters Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 45(1) 20-30 Available at - NIO, Goa
  • Govindasamy, C and Kannan, L (1991) Rotifers of the Pitchavaram mangroves (Southeast coast of India): A hydrobiological approach Mahasagar- Bulletin of National Institute of Oceanography NIO, Goa 24( 1) 39-45 Available at - NIO,Goa
  • Varghese, M (2011) Distribution of brachionus species (Phylum Rotifera) in Cochin backwaters, Kerala, India Journal of the Marine Biological Association of India Marine Biological Association of India 53(1) 130-134 Available at -
  • Varghese, M (2006) Taxonomic account of rotifers in the study area Studies on the taxonomy, distribution, ecology and reproductive potential of rotifers from selected centres in Cochin backwater system, Kerala Central Marine Fisheries Research Institute 1-343 Available at -

Page last updated on:2011-09-27

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