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Synodontis
''Synodontis'' is the largest genus of upside-down catfishes. It is the biggest genus within the 10 genera and 190 different species in the Mochokidae family. ''Synodontis'' has over 131 different species within the genera. ''Synodontis'' are also known as ''squeakers'', due to their ability to make stridulatory sounds through their pectoral fin spines when handled or disturbed.〔 ''Synodontis'' make a sound that sounds like squeaking by rubbing their spines together. They do this when they have been frightened or when they become angry.〔 "Synodontis" may also squeak when they are taken out of the water.〔 These catfish are small- to medium-sized fish〔 with many species exhibiting attractive spotted markings. Some species are also known for naturally swimming belly-up, earning the name upside-down catfish.〔 Some of these species are ''Synodontis contractus'' and ''Synodontis nigriventris''. While some of these species are known to swim upside down, another species, ''Synodontis multipunctatus'', is a brood parasitic cuckoo catfish.〔 ==Distribution==
''Synodontis'' is a freshwater catfish that is most commonly found throughout Africa, occurring mostly in Central and West Africa.〔 ''Synodontis'' is the most widely distributed mochokidae genus, occurring throughout most of the freshwaters of sub-Saharan Africa and the Nile River system.〔 They can live in freshwaters which can be creeks, ponds, streams, lakes, and rivers.〔 Their distribution is similar to that of cichlid fishes, however, unlike cichlids the majority of their diversity occurs in rivers not lakes.
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「Synodontis」の詳細全文を読む
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