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The Geophaginae are a subfamily of cichlid fishes from South America, where they are found as far west as the Andes and as far south as northern Argentina. The subfamily includes about 160 species. A single species, ''Geophagus crassilabris'', is from southernmost Central America. For aquaristic purposes the subfamily can be divided into two groups based on size, appearance and to some extent behavior: given soft or sufficiently fine substrate, even dwarf cichlids will behave like ''Geophagus'', the "eartheater", and take up, mumble and spit out sand and fine gravel, stripping it of biofilm nutrients. This grouping, however, does not reflect the phylogenetic relationships of these genera within the geophagine clade: * Dwarf cichlids, which do not surpass in length: ''Apistogramma'', ''Apistogrammoides'', ''Biotoecus'', ''Crenicara'', ''Dicrossus'', ''Mazarunia'', ''Microgeophagus'', and ''Taeniacara''. * Eartheaters, a range of medium-small to fairly large cichlids, where many species have a habit of picking up large mouthfuls of earth or sand: ''Acarichthys'', ''Biotodoma'', ''Geophagus'', ''Guianacara'', ''Gymnogeophagus'', and ''Satanoperca'' (the superficially similar ''Retroculus'' is sometimes also called eartheater, but is a member of another subfamily). ==Genera== * ''Acarichthys'' * ''Apistogramma'' * ''Apistogrammoides'' * ''Biotodoma'' * ''Biotoecus'' * ''Crenicara'' * ''Dicrossus'' * ''Geophagus'' * ''Guianacara'' * ''Gymnogeophagus'' * ''Mazarunia'' * ''Mikrogeophagus'' * ''Satanoperca'' * ''Taeniacara'' 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「Geophaginae」の詳細全文を読む スポンサード リンク
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