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''Sipunculus nudus'' is a species of unsegmented marine worm, also known as peanut worms. The body of the adult worm is around in length but can reach up to in some cases. The worm is commonly found on subtidal zones of sandy shores to seabeds in depth in temperate or tropical waters. The worm hides in sand burrows which it makes by itself during the day and may extend its tentacles out of the burrow to feed at night. Its diet consists of plant or animal tissue fragments and any surrounding sand it may ingest with it. Recent research indicates that it is a complex of similar species around the world rather than one species, with at least "five distinct lineages identified by phylogenetic analyses". ==Uses== The species is collected and sold as a model organism for various fields of science, as fish bait, or for human consumption. In particular, ''S. nudus'' is collected, cleaned of its innards, and eaten as a delicacy in parts of southern China such as the provinces of Guangdong, Hainan, Guangxi, and Fujian. The worms are local delicacies in Beihai, Guangxi where it is called ''Běihǎi shāchóng'' (北海沙虫, lit. "Beihai sandworm") and is cooked through various methods. It is also sold and exported as a dried seafood product. In Xiamen, Fujian the species is called ''tǔsǔn'' (土笋, lit. "earth bamboo shoot") and served as an aspic (''tǔsǔn dòng'', 土笋冻, lit. earth bamboo shoot aspic) in local restaurants. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sipunculus nudus」の詳細全文を読む スポンサード リンク
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