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Codium duthiae
Herbarium specimen of Codium duthiae
Scientific classification
Clade:	Viridiplantae
Division:	Chlorophyta
Class:	UTC clade
Order:	Bryopsidales
Family:	Codiaceae
Genus:	Codium
Species:	C. duthiae
Binomial name
Codium duthiae P.C.Silva

Codium duthiae is a species of seaweed in the Codiaceae family.^[1]

The epilithic green marine alga typically grows to a height of 60 centimetres (24 in). It has a discoid holdfast with spongy erect fronds on terete branches.

It is found on coastal area with light to moderate water movement from the low tide mark to a depth of 25 metres (82 ft)

In Western Australia is found along the coast near Shark Bay extending down around the south coast.^[1] Its range extends around southern Australia to Victoria and northern Tasmania