Brachionus falcatus   Zacharias,  1898 (Rotifer)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Rotifera
Class: Eurotatoria
Order:Ploima
Family:Brachionidae

Image copyrights: The Marine Biological Association of India

Description
Size: Length of lorica 126-182 µm; maximum width of lorica 110-140 µm.

Lorica firm, lightly stippled, greatly compressed dorso-ventrally and composed of dorsal and ventral plates. Antero-dorsal margin with six spines, intermediate spines considerably larger than laterals and medians, curve laterally outwards or ventrally towards head of the animal. Median spines mostly equal to laterals but sometimes smaller. Mental edge firm and wavy without spine and without elevation towards the center. Posterior spines widely separated basally, long, their width much more than anterior spines, parallel or bow outwards, converge, then twist towards their apices, thus completing full arch. Foot opening between bases of posterior spines, subsquare hole in ventral plate. Foot opening unflanked.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Estuarine

Biogeography


• Kerala, Poothotta 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)
• Tamil Nadu, Vedaranyam (Lat: 10.27) (Long: 79.39) INDIA (Record: 10/2007-03/2010)
• Tamil Nadu, Vedaranyam (Lat: 10.82) (Long: 79.88) INDIA (Record: 10/2007-03/2010)
• Kerala, Kochi Fisheries Harbour 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 - http://www.marinespecies.org
  • 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
  • Manikannan, R; Asokan, S and Ali, AHMS (2011) Studies on species composition of plankton in the great Vedaranyam swamp of the Point Calimere wildlife sanctuary, Tamil Nadu, India World Journal of Fish and Marine Sciences IDOSI 3(4) 283-289 Available at - http://www.idosi.org/wjfms/wjfms3(4)11/4.pdf
  • 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 - http://www.mbai.org.in/journaldload.php?id=2197&bkid=103
  • 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 - http://dyuthi.cusat.ac.in/purl/921

Page last updated on:2011-09-27

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