Codium duthiae

Codium duthiae is a species of seaweed in the Codiaceae family.

The epilithic green marine alga typically grows to a height of 60 cm. 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 m

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