Amaroucium pliciferum - Amaroucium pliciferum

Japanese: マンジュウボヤ(饅頭海鞘) - マンジュウボヤ(英語表記)Amaroucium pliciferum
Amaroucium pliciferum - Amaroucium pliciferum
A protochordate of the Ascidians of the family Oncorhynchidae in the order Urochordate. It is found from central Honshu to the Philippines, attaching to rocks below the low tide line. It forms bun-shaped colonies about 12 cm long and 5 cm high, and attaches to objects at almost the center of the bottom. It is covered with a translucent, pale pink outer skin, and the many orange individual zoons lined up give it a reddish-red appearance. Each individual zoon is about 2 cm long, with its posterior abdomen buried vertically in the outer skin, and 15 to 30 zoons form a long, slender line. Each line has one to three common excretory openings.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
尾索綱ホヤ目マンジュウボヤ科の原索動物。本州中部よりフィリピンにわたって分布し,低潮線下の岩石などに付着している。長さ12cm,高さ5cmほどのまんじゅう状の群体をつくり,底面のほぼ中央で他物に付着する。半透明な淡紅色の外皮でおおわれ,橙色の多くの個虫が並んでいるため全体が赤紅色に見える。個虫は長さ2cmほどで,後腹部が外皮中に垂直に埋まっていて15~30個虫が細長い系列をつくる。各系列の中には1~3個の共同排出孔がある。

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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