Gigartina australis J.Agardh (1899:25)

Turkish towel algae



Taxonomy & Nomenclature



Conservation Status

Extinct (Dulvy et al., 2003; del Monte-Luna et al., 2007, 2023)

Last record: 1892 (Dulvy et al., 2003)



Sydney Harbour, New South Wales, Australia

Type locality: "probably Ballina or Twofold Bay" (Millar & Kraft, 1993:16)


Anatomy & Morphology



Biology & Ecology










Original scientific description:

Agardh, J. G. (1899). Analecta algologica. Continuatio V. Lunds Universitets Arsskrift, Andra Afdelningen, Kongliga Fysiograjiska Sdllskapets Handlingar 35(4): 160 pp., 3 plates.


Other references:

del Monte-Luna, Pablo, Lluch-Belda, D., Serviere-Zaragoza, E., Carmona, R., Reyes-Bonilla, H., Aurioles-Gamboa, D., Castro-Aguirre, J. L., del Próo, S. A. G., Trujillo-Millán, O. and Brook, B. W. (2007). Marine extinctions revisited. Fish and Fisheries 8(2): 107-122.

del Monte-Luna, Pablo et al. (2023). A review of recent and future marine extinctions. Cambridge Prisms: Extinction 1: e13.

Dulvy, N. K., Sadovy, Y. and Reynolds, J. D. (2003). Extinction vulnerability in marine populations. Fish and Fisheries 4(1): 25-64.

M.D. Guiry in Guiry, M.D. & Guiry, G.M. 13 March 2006. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 20 August 2023

Millar, A. J. K. (2003). The world's first recorded extinction of a seaweed, pp. 313-318. In: A. R. O. Chapman; Robert J. Anderson and Valerie J. Vreeland (eds). Seventeenth International Seaweed Symposium: proceedings of the seventeenth International Seaweed Symposium, Cape Town, South Africa, 28 January—2 February 2001. New York: Oxford University Press.

Millar, A. J. K. and Kraft, G. T. (1993). Catalogue of marine and freshwater red algae (Rhodophyta) of New South Wales, including Lord Howe Island, South-western Pacific. Australian Systematic Botany 6(1): 1-90 [16].


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