Blue spiny starfish

Coscinasterias tenuispina is a starfish in the family Asteriidae. It is sometimes called the blue spiny starfish or the white starfish. It occurs in shallow waters in the Atlantic Ocean and the Mediterranean Sea.

Coscinasterias tenuispina has from 6 to 12 arms (usually 7), often of varying lengths, and grows to 20cm (8in) in diameter. It is a creamy, slightly bluish colour, variously blotched with brown, and is rough textured with short spines.