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''Saccoglossus'' is a genus of acorn worm (Class Enteropneusta). It is the largest genus in this class, with 18 species.〔Cameron, C. B., et al. (2010). (A revision of the genus ''Saccoglossus'' (Hemichordata: Enteropneusta: Harrimaniidae) with taxonomic descriptions of five new species from the Eastern Pacific. ) ''Zootaxa'' 2483 1-22.〕 This genus is characterized especially by the concentric rings of muscle fibers in the proboscis. Many ''Saccoglossus'' can be found in coastal mud and sand habitat, often near bays. They dig tubes in the substrate, ejecting conical piles of castings in a spiral fashion.〔 Acorn worms of this genus are known for the production and accumulation of various halogenated phenols and pyrroles. ==Species== Species include:〔 * ''Saccoglossus apatensis'' Thomas, 1956 * ''Saccoglossus aulakoeis'' Thomas, 1968 * ''Saccoglossus bromophenolosus'' King, Giray and Kornfield, 1994 * ''Saccoglossus horsti'' Brambell and Goodhart, 1941 * ''Saccoglossus hwangtauensis'' Si & Kwang-Chung, 1935 * ''Saccoglossus inhacensis'' van der Horst, 1934 * ''Saccoglossus kowalevskii'' (Agassiz, 1873) * ''Saccoglossus madrasensis'' Rao, 1957 * ''Saccoglossus mereschkowskii'' (Wagner, 1885) * ''Saccoglossus otagoensis'' (Benham, 1899) * ''Saccoglossus palmeri'' Cameron, et al., 2010〔 * ''Saccoglossus porochordus'' Cameron, et al., 2010〔 * ''Saccoglossus pusillus'' (Ritter, 1902) * ''Saccoglossus rhabdorhynchus'' Cameron, et al., 2010〔 * ''Saccoglossus ruber'' Tattersall, 1905 * ''Saccoglossus shumaginensis'' Cameron, et al., 2010〔 * ''Saccoglossus sonorensis'' Cameron, et al., 2010〔 * ''Saccoglossus sulcatus'' (Spengel, 1893) 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「Saccoglossus」の詳細全文を読む スポンサード リンク
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