Hyalonema sieboldi (Hyalonema sieboldi)

Japanese: ホッスガイ(払子貝) - ホッスガイ(英語表記)Hyalonema sieboldi
Hyalonema sieboldi (Hyalonema sieboldi)
A sponge of the family Polypodidae in the class Hexactinellidae (illustration). This deep-sea sponge has been found at depths of 300-500m in Sagami Bay and Suruga Bay. It stands in the mud on the seabed with a long siliceous thread stalk (hasoku) protruding from its cylindrical body 10-15cm in height, and reaches a total length of 50-80cm. It was so named because the stalk resembles a whisk carried by monks. The upper end of the body is flat with a cribriform plate, which covers the large stomach cavity inside the body. The stomach cavity is divided into four chambers by radially arranged partitions.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
六放カイメン綱ホッスガイ科の海綿動物(イラスト)。深海に産するカイメンで,相模湾や駿河湾の水深300~500mから得られている。高さ10~15cmの円筒状の体から長い珪糸(けいし)の柄(把束(はそく))をだして海底の泥中に立ち,全長50~80cmになる。この柄が僧のもつ払子(ほつす)に似ているというのでこの名がある。体の上端は平らで篩状(しじよう)板があり,体内の広い胃腔をおおっている。胃腔は放射状に並ぶ隔壁で四つの室に分かれている。

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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