Jania squamata (Linnaeus) J.H.Kim, Guiry & H.-G.Choi, 2007
Other names: Also known as Haliptylon squamatum.
Common name: Creeping Coral Weed.
Description: Fronds characteristically pink with whitish
tips (above), calcified, articulated, regularly pinnate, to 200
mm long, axis compressed, repeatedly pinnate from and entangles
stoloniferous base, more abundantly and regularly branched
than C. officinalis. Articulations relatively large,
distinctly shield-shaped, often arrow-shaped. Generally with a stoloniferous base.
Habitat: Mostly epiphytic on Ericaria and Gongolaria species
in lower-shore pools on moderately wave-exposed coasts.
Occasionally on rock. Subtidal to 5 m. Rare.
Distribution: SW and W Ireland and Britain
south to the Canary Islands and Sénégal.
Mediterranean.
Similar species:
Corallina officinalis
is commoner, is more chalky in colour, has less regular
branching, and generally has more rounded articulations.
Jania rubens which is
dichotomously branched,
Note: Frequently misidentified, particularly for some forms of Corallina officinalis. 
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