Tetraselmis gracilis   (Kylin) Butcher,  1959 (Algae)
Organism information awaits expert curation
Class: Prasinophyceae

Cells are cylindrical in lateral view and both ends appear to be rounded in dorsal view. The apex of the cell possesses a shallow furrow, from the base of which four identical flagellate emerge. A long narrow sinus passed from the furrow to the base of the cell. The cell includes a basal pyrenoid with 'U' shaped starch sheath, an orange-red stigma of median position and rows of starch granules arranged from the tip of the cell to the pyrenoidal region. Chromatophore axile, pale green and granular in appearance.

Reproduction is by the longitudinal division of the mother cell content into 2 daughter cells. Cyst formation begins after one week and continues up to 3 weeks. One celled and two celled cysts having striated thick walls are formed with indistinct papilla at the anterior end.

Synonym (s)
Platymonas gracilis Kylin, 1935
(Homotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine


• Goa, Mandovi and Zuari Estuary INDIA (Record: 11/1979-10/1980)
• Goa, Mandovi Estuary (Lat: 15) (Long: 74) INDIA (Record: 08/1997)
• Kerala, Kochi Coast INDIA

Literature Source(s)
  • Shrivastava, Y; Mahambre, GG; Achuthankutty, CT; Fernandes, B; Goswami, SC and Madhupratap, M (1999) Parthenogenetic reproduction of Diaphanosoma celebensis (Crustacea: Cladocera). Effect of algae and algal density on survival, growth, life span and neonate production Marine Biology Springer 135 663-670 Available at - http://drs.nio.org/drs/handle/2264/1852
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • Devassy, VP; and Goes, JI (1988) Phytoplankton Community Structure and Succession in a Tropical Estuarine Complex (Central West Coast of India) Estuarine, Coastal and Shelf Science Academic Press 27(6) 671-685 Available at - http://dx.doi.org/10.1016/0272-7714(88)90074-1
  • Samuel, S (1970) An introductory account on some algal nanoplankters of the south west coast of India Journal of the Marine Biological Association of India Marine Biological Association of India, Cochin, India 12(1&2) 35-42 Available at - NIO, Goa

Page last updated on:2011-02-15

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