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Arctic cookie star
Ceramaster arcticus, the Arctic cookie star, is a species of sea star. It is pink and often has dark red accents. It has broad arms, no spines, and no pincers, or pedicellariae. It is considered rare and only inhabits the Pacific Ocean off the coast of northwestern North America.〔(Sea Stars of the Pacific Northwest )〕
==Description==
A member of the ''Ceramaster'' genus of sea stars (often referred to as cushion stars), the Arctic cookie star is broadly pentagonal, rigid, and like other ''Ceramaster'' species, has no arms. The species' aboral surface (i.e., the top of the sea star) has small flat-topped plates. Growing up to 11 cm across (4.2 inches), it is pink and often has red accents. The species preys on sponges.〔
The species is similar to the more common cookie star (''Ceramaster patagonicus'').〔''Ceramaster patagonicus'' Wikipedia page〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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