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Oreaster reticulatus, commonly known as the red cushion sea star or the West Indian sea star, is a species of marine invertebrate, a starfish in the family Oreasteridae. It is found in shallow water in the western Atlantic Ocean and the Caribbean Sea.
Solaster stimpsoni is a large species, growing up to 50 cm in diameter. It can have 8 to 12 arms, but usually has 10. [2] The aboral surface has a distinctive reddish orange colour and is covered with thick paxillae.
The starfish is found on hard bottoms and under stones and seaweed where it mainly feeds on other echinoderms and on bivalve molluscs. [3] In most of its range, it undergoes sexual reproduction in the winter, while in the summer, it proliferates by asexual reproduction . [ 4 ]
The aboral surface (top) is usually bright red but may be purple, orange or yellow. It has white/yellowish spots and bands that radiate from the centre, and smooth greasy skin. [6] The madreporite is in the centre. [4] P. pulvillus has translucent soft papillae that act as gills. The oral surface (underside) is pale.
Aboral surface of an Asterias forbesi sea star showing ring of pedicellariae surrounding spine. Asterias, like most starfish genera in the order Forcipulatida, are recognisable externally by their pedicellariae, many thousands of tiny jaw-like structures on the skin which can snap shut to nip at prey or predators.
Jellyfish, starfish, sand dollars and the occasional octopus wash up on South Carolina beaches all year round. For these invertebrates, sitting exposed to the sun and air will eventually kill them.
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