Dumontia contorta (S. G. Gmelin) Ruprecht
Also known as Dumontia incrassata
Description: Soft, pale yellowish to purple fronds, solitary or tufted from discoid base, tubular, cylindrical or compressed, irregularly branched, to 500 mm long, filled with a watery mucilage. Axis and branches tapered at both ends, irregularly swollen, often twisted, to 5 mm or more broad. Basal disc to 20 mm diam., persistent, erect fronds initiated internally.
Habitat: On rock and pebbles, shallow open pools, upper intertidal to shallow subtidal, common, widely distributed.