It is known from thirteen separate locations and because there is no planktonic larval stage, this species has limited scope for dispersal.

One of these locations was as a result of an accidental introduction in 1995 when an aquarium population was liberated into the sea at Woodbridge due to a concern over their care during a holiday period.

It is found on rock, hiding under stones and in crevices, in the intertidal zone and in very shallow water (under 1.2 m (4 ft) deep).

[2] This starfish feeds on the microbial and algal film found on the surface of rocks.

They are present in various sizes, and usually leave the protective environment to live independently by the time they are 30% of the parent's diameter.