Description:
A diminutive red algae, flattened, V-shaped, somewhat cartilaginous, brown-red fronds, to 5 mm broad and to 100 mm high, with short stipes arising from a rhizoidal base. Fronds repeatedly dichotomously branched, axils narrow, apices elongate sometimes forming tendril-like extensions, margins smooth.

Habitat:
On rocks and in shady pools, lower intertidal and subtidal (to 8? m), south and west coasts of Britain and Ireland, common in Normandy, locally abundant in areas affected by sand or silt; occasionally on maërl in shallow subtidal. Frequently found in shaded crevices and niches.

(In: Seaweed Site - ©Michael D. Guiry - http://seaweed.ucg.ie/descriptions/Rhohol.html)