Korean brittle star (English name) Amphiura koreae

Japanese: チョウセンクモヒトデ（英語表記）Amphiura koreae

This echinoderm belongs to the Ophiuroidea family of the Ophiuroidea class. It is found from Honshu, Shikoku, and Kyushu to the Korea Strait, and lives by burrowing into the muddy bottom on the continental shelf. The disk is 0.8 cm in diameter and the arms are about 4 cm long. The disk is pale blue or pale vermilion, and the arms pale yellow. The surface of the disk is covered with small scales. It extends its arms out of the mud and shakes them in the water, secreting mucus from its tube feet to collect plankton in the sea and bring it to its mouth. It also eats organic matter that has accumulated on the seabed, attaching it to its tube feet.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

クモヒトデ綱スナクモヒトデ科の棘皮（きよくひ）動物。本州，四国，九州から朝鮮海峡にかけ分布し，陸棚上の泥底中に潜って生活する。盤の直径は0.8cm，腕の長さ約4cm。盤は淡青色または淡朱色で，腕は淡黄色。盤の表面は小さいうろこで覆われている。泥の中から腕を水中に出してふるが，これは管足から粘液を分泌して海中のプランクトンを集め，口へもっていくためである。海底にたまっている有機物をも管足につけて食べる。

出典　株式会社平凡社世界大百科事典第２版について　情報

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