Coscinasterias tenuispina is an unusual Mediterranean sea star with 7 to 8 often unequal arms. 10 to 20 cm across. Reproduces by asexual fission: it splits in two and regenerates the missing arms, hence the asymmetry. Variable colors: grey, brown, purple. Carnivore, preys on small mollusks. Common on rocky and coralligenous bottoms.
Frequently asked questions
How big is the Blue spiny starfish?
Blue spiny starfish (Coscinasterias tenuispina) reaches 10–20 cm in length.
At what depth can you find the Blue spiny starfish?
Blue spiny starfish is found between 0–125 m deep.
Is the Blue spiny starfish dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Blue spiny starfish?
IUCN status: Least concern (LC).
Where can you find the Blue spiny starfish?
Found in: East Atlantic, Macaronesia, Mediterranean.