Helminthocladia australis   Harvey,  1863 (Algae)
Organism information awaits expert curation
Class: Florideophyceae

Image copyrights: Weblio

Color: Dull reddish purple in living state, fading to a slightly brownish purple color when dried.

Thalli pyramidal, 15-17 cm high, arises from a discoid holdfast, compressed in the basal part and cylindrical upwards, main axis percurrent, laterally to widely patent, horizontal branches, branching of 3 or 4 orders. Branches of all orders not attenuating at base but attenuating gradually upwards, 2-4 (8) mm broad. Medulla consisting of slender, tightly woven filaments; cortical filaments 4 or 5 times dichotomously branched, the terminal branches frequently clustered irregularly. The procarp consisting of 3 cells.

Synonym (s)
Helminthora tumens J. Agardh, 1890
(Heterotypic synonym)
Helminthocladia tumens (J. Agardh) J. Agardh, 1899
(Heterotypic synonym)
Helminthocladia gracilis N. L. Gardner, 1926
(Heterotypic synonym)
Helminthocladia papenfussii Kylin, 1938
(Heterotypic synonym)
Helminthocladia macrocephala Yamada, 1941
(Heterotypic synonym)
Helminthocladia californica (J. Agardh) Kylin, 1941
(Heterotypic synonym)
Helminthocladia australis var. californica J. Agardh, 1899
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Gujarat, Okha (Lat: 22.48) (Long: 69.1) INDIA
• Tamil Nadu, Gulf of Mannar (Lat: 8.5) (Long: 79) INDIA
• Palk Bay (Lat: 9.5) (Long: 79.25) INDIA
• Tamil Nadu, Mandapam (Lat: 9.28) (Long: 79.12) INDIA
• Gujarat INDIA
• Tamil Nadu INDIA
• Andhra Pradesh INDIA
• Tamil Nadu, Valinokkam (Lat: 9.17) (Long: 78.65) INDIA
• Tamil Nadu, Valinokkam-Kilakarai INDIA (Record: 01/1989)
• Tamil Nadu, Manapad-Kanniyakumari INDIA (Record: 03/1990)

Literature Source(s)
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • (2006) Algaebase Available at - http://www.algaebase.org/
  • 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
  • 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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Kaliaperumal, N; Chennubhotla, VSK; Kalimuthu, S; Ramalingam, JR; Pillai, SK; Muniyandi, K; Rao, KR; Rao, PVS; Thomas, PC; Zaidi, SH and Subbaramaiah, K (1998) Seaweed resources and distribution in deep waters from Dhanushkodi to Kanyakumari, Tamilnadu Seaweed Research and Utilisation Seaweed Research and Utilisation Association, Tamil Nadu, India 20(1&2) 141-151 Available at - NIO, Goa
  • Tseng, CK (Ed.) (1983) Common seaweeds of China Science Press 316 pp Available at - NIO, Goa
  • Weblio Available at - http://www.weblio.jp/

Page last updated on:2011-04-04

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