Cushion star

(redirected from cushion stars)
(Zool.) a pentagonal starfish belonging to Goniaster, Astrogonium, and other allied genera; - so called from its form.

See also: Cushion

References in periodicals archive ?
There is also a lesser-known species called cushion stars but you really have to look carefully for them and Worms Head causeway, Gower, is the only place I know where you can find them in Wales.
He added: "There are pencil urchins which are ordinary sea urchins with a very strong pencil-like spine, cushion stars which are strange star fish, and bizarre crabs.
And he said even cushion stars, a rare type of starfish which was almost wiped out in the area, had now recovered their numbers.