Purple sea cucumber (Polycheira rufescens)

Japanese: ムラサキクルマナマコ(紫車海鼠) - ムラサキクルマナマコ(英語表記)Polycheira rufescens
Purple sea cucumber (Polycheira rufescens)
It is an echinoderm of the Holothurianidae family. It is found in areas south of central Honshu, the Philippines, and Australia, where it grows in colonies on pebbly rocks in the intertidal zone. Its name comes from the fact that its body is purple and the bone fragments under its skin are wheel-shaped. Its body is cylindrical and soft, reaching a length of 15 cm. Its entire body is deep dark purple to dark brown, with the tentacles at the front end of the body being the darkest, but some are bright red or white. It has 17 to 19 tentacles, most with 18, with 8 to 16 pairs of branchlets at the end.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
ナマコ綱クルマナマコ科の棘皮(きよくひ)動物。本州中部以南の各地,フィリピン,オーストラリアに広く分布し,潮間帯の小石まじりの磯に群生する。体が紫色で,皮膚の下にある骨片が車輪の形をしているところからこの名がある。体は円筒形でやわらかく,長さ15cmに達する。全身が濃い暗紫色から暗褐色で,体の前端にある触手がもっとも濃いが,なかには鮮赤色や白いものもある。触手は17~19本で,18本のものが多く,先端に8~16対の小枝をつける。

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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