Ophiothrix caespitosa Lyman 1879
spiney-armed brittle star

family Ophiotrichidae

The spiney-armed brittle star, Ophiothrix caespitosa, has spines on the arms and body. It is pink or light brown with redder stripes on the arms. They are secretive, often found under broken corals.

Distribution =   southern Australia
Max size =   disc 1cm diameter, arms to 5cm long