Nemacystus decipiens   (Suringar) Kuckuck,  1929 (Algae)
Organism information awaits expert curation
Class: Phaeophyceae

Image copyrights: Keoki Stender

Color: Light brown.

Thallus soft gelatinous; much and very irregularly branched, forming entangled mass. Growth of the main axis and its laterals brought about by means of a distinct apical cell. Thallus pseudo-parenchymatous, internally differentiated into a central tissue and a peripheral tissue. Central tissue made up of thick-walled axial filament surrounded by a number of large thick-walled cells representing the cells of short primary and secondary whorled laterals of limited growth, constituting the peripherals tissue of the thallus. Peripheral tissue composed of assimilators and hairs, as well as reproductive bodies. Assimilatory filaments moniliform, composed of more or less rectangular cells in the lower portion, barrel-shaped in the upper region, apical cells around. Cells thin-walled, 7-25 µ long and 5-20 µ broad. Hairs long, colorless, possessing a basal meristem, cells cylindrical and narrow in the lower portion, broad and elongated in the upper; 15-100 µ and 5-8 µ broad.
Thallus becoming hollow in the mature regions due to the tearing away of the central axial filament and some of the adjacent cortical filaments.

Plants bearing both unilocular and plurilocular sporangia; the former oval to obovate in shape, formed near the bases of the assimilatory filaments, 5-10 µ long and 20-35 µ broad; the latter sporangia cylindrical, also arising from the bases of the assimilators; 60-90 µ long and 5-7 µ broad, uniseriate or multiseriate.

Synonym (s)
Mesogloia decipiens Suringer, 1872
(Homotypic synonym)
Cladosiphon decipiens (Suringar) Okamura, 1912
Cladosiphon decipiens (Suringar) Okamura, 1903
(Homotypic synonym)
Mesogloia decipiens Suringar, 1872

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Gujarat, Dwarka Coast (Lat: 18.17) (Long: 66.17) INDIA
• Gujarat, Okha (Lat: 22.47) (Long: 69.08) INDIA
• Gujarat INDIA
• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Gujarat, Dwarka INDIA
• Gujarat, Gulf of Kachchh INDIA

Literature Source(s)
  • Volsoe, H (1939) Danish scientific investigations in Iran Einar Munksgaard, Copenhagen (part I) 16681 Available at - NIO, RC, Kochi
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Subba Rao, NV and Sastry, DRK (2005) Fauna of Marine National Park, Gulf of Kuchchh (Gujarat) ZSI 79 pp Available at - NCL, Pune
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Mishra, JN (1966) Phaeophyceae in India ICAR 203 pp Available at - NIO, Goa
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • Krishnamurthy, V (2006) Key to the taxonomic identification of green and brown marine algae of India Recent advances on applied aspects of Indian marine algae with reference to global scenario. Seaweed taxonomic identification, aquaculture, resource, environment, fouling and disease Central Salt and Marine Chemicals Research Institute, Bhavnagar 1 1-146 Available at - NIO, Goa
  • (2006) Algaebase Available at -
  • (1997) Coastal marine environment of Gujarat 178pp Available at - NIO, Goa

Page last updated on:2011-01-05

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