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Epulopiscium fishelsoni
''Epulopiscium fishelsoni'', or "epulo" for short, is a species of Gram-positive bacteria that have a symbiotic relationship with surgeonfish. These bacteria are most well known for their large size, ranging from 200–700 μm in length. Until the discovery of ''Thiomargarita namibiensis'' in 1999, these were the largest bacteria known. The bacterium has not been grown in the lab, but scientists have gained a better understanding of it through microscopic analysis.
==Naming and discovery==
''Epulopiscium'' means "banquet of fish" in scientific Latin, from ' ("feast" or "banquet") and ' ("of fish"), as the organism was found inside the gut of fish.
The specific epithet ''fishelsoni'' is named for Lev Fishelson, a Polish-born Israeli ichthyologist〔(【引用サイトリンク】url=http://www.tau.ac.il/lifesci/departments/zoology/members/fishelson/fishelson.html )〕 who was part of the group that made the discovery while studying the intestines of a brown surgeonfish from the Red Sea in 1985. It was not named until 1988, by Montgomery (one of the co-discoverers) and Pollak.〔
They were initially classified as protists on the basis of their large size, until rRNA analysis by Angert, ''et al.'' in 1993 confirmed that ''Epulopiscium'' spp. are bacteria.〔 Their research and studies illustrated the symbiotic relationship between the host surgeonfish.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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