Chaetomorpha spiralis   Okamura,  1903 (Algae)
Organism information awaits expert curation
Class: Ulvophyceae

Image copyrights: M.D. Guiry

Color: Dark green

Thallus form and type: Filamentous and coiled

Substratum: Intertidal rocks

Occurrence: Lower mid littoral zone, sheltered rocks with coarse sand

Season: November-April

Thalli rigid and elongated, filamentous, much coiled and contorted when young, later loosened and entangled among other algae, up to 22 cm long. Filaments unbranched, attached to the substratum by a few simple or slightly branched, short and blunt rhizoids. Basal cells inconspicuous, 500-600 µm diameter and 2-3 diameters long and a few cells above the basal one, the filaments coiling spirally. The cells monoliform to nearly cylindrical, 400-630 µm diameter, 0.5-1.5 diameters long.

Synonym (s)
Chaetomorpha clavata var. torta Farlow ex Collins, 1909
(Heterotypic synonym)
Chaetomorpha torta (Farlow ex Collins) Yendo, 1914
(Heterotypic synonym)
Chaetomorpha torta Silva, 1996

Common Name (s)
Economic Importance and Threats

Habitat:  Rocky, Coastal


• Andhra Pradesh, Vishakhapatnam (Lat: 17.73) (Long: 83.27) INDIA
• Gujarat INDIA
• Lakshadweep (Lat: 10) (Long: 73) INDIA
• Tamil Nadu INDIA
• Andhra Pradesh INDIA
• Tamil Nadu, Kodikkarai (Lat: 10.3) (Long: 79.86) INDIA (Record: 01/2006-02/2006)
• Tamil Nadu, Muthupet Lagoon (Lat: 10.76) (Long: 79.85) INDIA (Record: 01/2006-03/2006, 11/2006-12/2006)
• Lakshadweep INDIA
• Gujarat, Okha Port INDIA (Record: 05/2004, 12/2004-04/2005)
• Gujarat, Veraval INDIA

Literature Source(s)
  • 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
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Leliaert, F; O De Clerck, JJB and Coppejans, E (2001) New records of the Chlorophyta from South Africa, with emphasis on the marine benthic flora of KwaZulu-Natal South African Journal of Botany NISC Pvt Ltd 67 450-459
  • 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
  • Bolton, JJ; Oyieke, HA and Gwada, P (2007) The seaweeds of Kenya: Checklist, history of seaweed study, coastal environment, and analysis of seaweed diversity and biogeography South African Journal of Botany 73 76-88 Available at - NCL, Pune
  • Phang, SM (2006) Seaweed resources in Malaysia: Current status and future prospects 9(2) 185-202 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 -
  • Arulmurugan, P; Natanamurugaraj, G; Senthilkumar, T; Muruganandam, A; Ramalingam, R; Muthukumar, S and Jeyachandran, S (2008) Seasonal variation in hydrography and diversity of seaweeds at Kodiakkarai coast and Muthupet lagoon Proceedings of the national symposium on marine and coastal ecosystems 27-29, August 2007 Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Marine Fisheries- 623 520, Tamil Nadu, India 30 25-33 Available at - NIO, Goa
  • (2006) Algaebase Available at -
  • 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
  • Thakur, MC; Reddy, CRK and Jha, B (2008) Seasonal variation in biomass and species composition of seaweeds stranded along Port Okha, northwest coast of India Journal of Earth System Science Springer 117(3) 211–218 Available at -
  • Tseng, CK (Ed.) (1983) Common seaweeds of China Science Press 316 pp Available at - NIO, Goa
  • Jha B, Reddy C.R.K, Thakur M C and Rao M (2009) Seaweeds of India The Diversity and Distribution of seaweeds of Gujarat Coast Springer 211pp Available at - NIO

Page last updated on:2012-11-26

Back to Search