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Gobio gobio
''Gobio gobio'', or the gudgeon, is a species of fish in the Cyprinidae family.
This small fish is widely distributed in fresh-water streams and lakes across central and temperate Eurasia.
The gudgeon inhabits all kinds of fresh-water habitats with sandy bottoms. It is a gregarious species, and feeds on benthic invertebrates. Its life span is up to five years. Gudgeons are usually smaller than 12 cm, rarely over 15 cm long. The common name gudgeon may also refer to other species of fish.
==Description==
The gudgeon has a long, slender, rounded body and grows to some long. It has short dorsal and anal fins that do not have serrated rays. There is a labial barbel at each corner of its mouth. It has two rows of pharyngeal teeth, conical, and slightly curved at the tip. Its head is wide and flattened, with a rather obtuse snout, the lower jaw being shorter than the upper one. It has relatively large scales and there are 40 to 45 of these along the lateral line. Its swimming bladder is large. Usually greenish-brown above and silvery on the sides, this fish has a row of six to twelve faint dark blotches running along the flank. It has a white underside, and its pectoral, ventral, and anal fins are of a grayish-white color with a brownish tinge. The dorsal and caudal fins are pale brown with darker spots.〔(【引用サイトリンク】title=Gudgeon: ''Gobio gobio'' )〕
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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