Serrasalmidae
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The Serrasalmidae are a family of characiform fishes native to freshwater habitats of South America. They include more than 90 species. The name means "serrated salmon family", which refers to the ser
Piranha serrasalmus manueli 01
Silver dollar (fish)
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Silver dollar is a common name given to a number of species of fishes, mostly in the genus Metynnis, tropical fish belonging to the family Serrasalmidae which are closely related to piranha and pacu.
Serrasalmidae
…to the serrated keel running along the belly of these fish. Fish classified as Serrasalmidae are also known by these common names: pacu, piranha, and silver dollar. These common names generally designate differing dental characteristics and feeding habits. Serrasalmids are medium- to large-sized characiform bony…
Silver dollar Metynnis argenteus
An 1865 watercolor painting of a silver dollar by Jacques Burkhardt.