Acestrorhynchus
Fish
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Acestrorhynchus is a genus of 14 species of characiform fish found only in fresh water in South America, the sole genus in the family Acestrorhynchidae. Their greatest diversity is in the Orinoco and Amazon basins. Wikipedia
Higher classification: Acestrorhynchidae
Scientific name: Acestrorhynchus
Genus: Acestrorhynchus; C. H. Eigenmann & C. H. Kennedy, 1903