Phylum: Rhodophyta   Family: Rhodomelaceae

Rhodomela lycopodioides (Linnaeus) C. Agardh

Straggly Tail Weed

A northern distribution in Britain, found attached to Laminaria stipes and occasionally rocky surfaces. Lower shore tidal pools and sublittoral

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