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catostomidae
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes. The Catostomidae are primarily native to North America, but ''Catostomus catostomus'' is found in both North America and Russia, and ''Myxocyprinus asiaticus'' is from China. They are not usually fished recreationally; they are not highly prized in North America for their flesh, although they are a fairly popular target with spear fisherman, and in some areas, such as the Ozarks, they are a common food fish.〔(【引用サイトリンク】url=http://www.nixasuckerday.org/ )〕
==Description and biology==
The mouth of this fish is located on the underside of its head (subterminal), with thick, fleshy lips. Most species are less than in length, but the largest species (''Ictiobus'' and ''Myxocyprinus'') can surpass . They are distinguished from related fish by having a long pharyngeal bone in the throat, containing a single row of teeth.
Catostomids are most often found in rivers, but can be found in any freshwater environment. Their food ranges from detritus and bottom-dwelling organisms (such as crustaceans and worms), to surface insects and small fishes.
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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