Phylum: Rhodophyta   Family: Ceramiaceae

Ceramium virgatum Roth, 1797

Common in intertidal rock pools growing on larger seaweeds and rock surfaces. Growing up to 30 cm tall, the delicate fronds are dichotomously branched and have a banded appearance when viewed under low magnification. The tips curl inwards to give a loose circle appearance

References: 
Bunker, Brodie, Maggs & Bunker (2017) - Seaweeds of Britain and Ireland;
Maggs & Hommersand (1993)- Seaweeds of the British Isles, Volume 1 Rhodophyta, Part 3A Ceramiales