spiny sun star

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spiny sun star

sea star

Also known as: Crossaster papposus

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In sea star
…cm across; the very common spiny sun star (Crossaster papposus) has as many as 15 arms. Cushion stars, of the circumboreal genus Pteraster, are plump five-rayed forms with raised tufts of spines and webbed, short, blunt arms.
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