Ceratium symmetricum   Pavillard,  1905 (Dinoflagellate)
Organism information awaits expert curation
Class: Peridinea

Image copyrights: Sharyn Hedrick

Medium sized robust form. Body much longer than broad, rather compressed. Left side contour strongly convex slightly close towards the apical horn, right side convex. Apical horn straight or a little bent, robust, mostly rather long. Hypotheca of almost same length as epitheca with strongly convex posterior contour which usually merges into the quite gradually bent posterior horns generally a little longer than right, beautifully uniformly bent, at the apex convergent towards apical horn, rarely parallel with the same, up to 4 times as long as the body. Right horn slightly bent, 2/3 of distal portion almost straight, convergent at apex towards apical horn, rarely parallel. Transverse furrow lists very clear except in young individuals. Armour of old individuals rather robust, pores and irregularly bent short lists, as well as winged lists at margins, sometimes dentate, present at base of apical horn, inner concave sides of posterior horns and posterior contour.

Synonym (s)
Ceratium tripos var. gracile Gourret, 1883
Ceratium tripos coarctatum Karsten, 1907
Ceratium gracile (Gourret) Jorgensen, 1911
Ceratium coarctatum Pavillard, 1923
Ceratium aultii Graham and Broniskovsky, 1944

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Bay of Bengal INDIA
• Arabian sea INDIA
• Kerala, Vaadi INDIA
• Kerala, Punnapra INDIA
• Kerala, Azheekode INDIA
• Kerala, Kodikkal INDIA
• East Coast (Lat: 21) (Long: 94) INDIA (Record: 01/1999-08/2002)
• East Coast (Lat: 10) (Long: 79) INDIA (Record: 01/1999-08/2002)

Literature Source(s)
  • Subrahmanyan, R (1968) The Dinophyceae of the Indian seas Memoir II, Part I Marine Biological Association of India, India 118 pp Available at - http://eprints.cmfri.org.in/2446/
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Smithsonian photography initiative Available at - http://photography.si.edu/
  • Sanilkumar, M G; Dr.Joseph, K J; Dr. Saramma, A V (2009) Planktonic Microalgae Microalgae in the Southwest Coast of India 34-114 Available at - http://dyuthi.cusat.ac.in/xmlui/purl/1922
  • Madhav, GV and Kondalarao, B (2004) Distribution of phytoplankton in the coastal waters of east coast of India Indian Journal of Marine Sciences CSIR, New Delhi 33(3) 262-268 Available at - http://nopr.niscair.res.in/bitstream/123456789/1678/1/IJMS%2033%283%29%20262-268.pdf

Page last updated on:2012-03-01

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