Description:
Cylindrical, gelatinous but firm, brownish-red fronds, 5 mm wide, 100 mm long, dichotomously branched from a small discoid base.

Key characteristics:
Firmly gelatinous with cylindrical thallus. Lack of constrictions.

Habitat:
On stones, shells and maërl in the shallow subtidal of southern and western coasts north to Pembroke in Wales and Galway in Ireland, not common.

Similar species:
Scinaia interrupta is larger and lighter in colour and mature plants are frequently consticted.