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Nothobranchius : ウィキペディア英語版 | Nothobranchius
''Nothobranchius'' is a genus of small, freshwater annual fish from in the family Nothobranchiidae which was long included in the Aplocheilidae. They are mainly found in East Africa from Sudan to northern South Africa, but half a dozen species are found in the upper Congo River Basin and two species (''N. rubroreticulatus'' and ''N. thierryi'') are from west-central Africa. The greatest species richness is in Tanzania. Many species have very small distributions. There are many species: as of 2012 there are about 60 species. They are a typical annual killifish, part of the order Cyprinodontiformes. The vertebrate with the shortest life span is a member of this genus, ''N. furzeri'' from Mozambique and Zimbabwe lives for between 3 and 6 months. In that time it hatches, matures, breeds and dies. ==Etymology== Greek ''"nothos"'': false, spurious, and ''"branchia"'': gill.
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