Sealife guideThe Valvatida orderThe taxonomy of marine species
Explore the taxonomy of marine echinoderms with a dedicated focus on starfish and sea urchins !
The class Asteroidea, commonly known as starfish, includes more than 1,600 known species. These marine animals can reach over one meter in span with their arms fully extended and typically have five arms or a multiple of five, with the number potentially varying due to regeneration after an arm is lost. Their skeleton is made up of adjacent but not fused calcareous plates.
Bat sea star
(Patiria miniata)
(Patiria miniata)
Biscuit sea star
(Peltaster placenta)
(Peltaster placenta)
Necklace sea star
(Fromia monilis)
(Fromia monilis)
Noduled sea star
(Fromia nodosa)
(Fromia nodosa)
Vermillion sea star
(Mediaster aequalis)
(Mediaster aequalis)
Heavy starfish
(Thromidia catalai)
(Thromidia catalai)
Blue sea star
(Linckia laevigata)
(Linckia laevigata)
Egyptian sea star
(Gomophia egyptiaca)
(Gomophia egyptiaca)
Smooth starfish
(Hacelia attenuata)
(Hacelia attenuata)
Chocolate chip sea star
(Nidorellia armata)
(Nidorellia armata)
Cushion starfish
(Culcita novaeguineae)
(Culcita novaeguineae)
Granular sea star
(Choriaster granulatus)
(Choriaster granulatus)
Horned sea star
(Protoreaster nodosus)
(Protoreaster nodosus)
Pin cushion sea star
(Culcita schmideliana)
(Culcita schmideliana)
Red cushion sea star
(Oreaster reticulatus)
(Oreaster reticulatus)
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Poisson perroquet bicolore
(Scarus rubroviolaceus)
(Scarus rubroviolaceus)
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