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Starfish, such as the ochre sea star (Pisaster ochraceus) and the reef sea star (Stichaster australis), have become widely known as examples of the keystone species concept in ecology. The tropical crown-of-thorns starfish ( Acanthaster planci ) is a voracious predator of coral throughout the Indo-Pacific region, and the Northern Pacific ...
Other related species favour a diet of bivalve molluscs and echinoids. [7] The magnificent star can move rapidly, appearing to glide across the sandy seabed. [ 3 ] It swallows large items of food whole, digesting them in its two stomachs and further processing the remains in the pyloric caeca in the base of its arms.
Patiria pectinifera, the blue bat star, is a species of starfish in the family Asterinidae. It is found in the northern Pacific Ocean along the coasts of Japan, China and Russia. It is found in the northern Pacific Ocean along the coasts of Japan, China and Russia.
Pentaceraster cumingi, sometimes known as the Panamic cushion star, Cortez starfish or knobby star (a name also used for other species), is a species of starfish in the family Oreasteridae. It is found in warmer parts of the East Pacific ( Gulf of California to northwest Peru , including offshore islands like the Galápagos ) and in Hawaii . [ 1 ]
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.
The order includes some well-known species, such as the common starfish, Asterias rubens. This order can be commonly found from North Carolina in the United States all the way to Santos in Brazil. This order can be commonly found from North Carolina in the United States all the way to Santos in Brazil.
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 Asterozoa are a subphylum in the phylum Echinodermata, within the Eleutherozoa.Characteristics include a star-shaped body and radially divergent axes of symmetry. The subphylum includes the classes Asteroidea (the starfish or sea stars), Ophiuroidea (the brittle stars and basket stars), Somasteroidea (early asterozoans from which the other classes most likely evolved), and Stenuroidea ...