Corallina elongata Ellis et Solander
Other names: Also known as C. mediterranea
Description: Chalky whitish-pink to reddish-lilac, calcified, articulated fronds, tiny fish-bone-like arrangement, to 50 mm high, axis compressed, repeatedly pinnate from discoid base, more abundantly and regularly branched than C. officinalis. Articulations small.
Habitat: On rock, exposed coasts, lower intertidal, southern and western coasts, occasional.
Similar species: Corallina officinalis is commoner, larger, and has coarser articulations. Jania rubens which is dichotomously branched.