Description: Thallus dichotomously branched, terete, to over 20 cms long with a felt-like surface and spongy feel. Utricles with rounded apices.

Habitat: Uncommon. Epilithic in rock pools of the lower littoral.

Distribution: Mainly on the western shores of the British Isles. Europe: Mediterranean, Azores, Portugal, Spain, France, Netherlands and Norway. Further afield: Sri Lanka and Japan.

Similar Species: Othere species of Codium save C. adhaerens and C.bursa.

Key Identification Features:

• Dichotomous branching. Utricles with rounded apices.

Distribution Map from NBN: Codium tomentosum at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Codium tomentosum at iNaturalist World Species Observations database.

WoRMS: Codium tomentosum at World Register of Marine Species. Accepted name: Codium tomentosum Stackhouse, 1797. AphiaID: 145092.

Classification: Biota; Plantae; Viridiplantae; Chlorophyta; Chlorophytina; Ulvophyceae; Bryopsidales; Codiaceae; Codium