Red-bellied Piranha and Similar Species
Pygocentrus nattereri
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Open the appSeveral fish can be confused with Red-bellied Piranha. Here are the key differences.
Species often confused with {name}
Black Piranha
Serrasalmus rhombeus
Key differences: Serrasalmus rhombeus typically has a more uniformly dark, often blackish or dark gray coloration, lacking the prominent red belly of P. nattereri. Its body is generally more elongated and less deep-bodied than P. nattereri, and its eye is often proportionally smaller.
Wimple Piranha
Catoprion mento
Key differences: Catoprion mento is easily distinguished by its unique lower jaw, which protrudes significantly and has a distinct 'wimple' or flap of skin. Its coloration is typically silvery with a dark spot on the side, and it lacks the red belly of P. nattereri. It also has a different feeding strategy, specializing in fin-nipping.
Gold Piranha
Pygocentrus cariba
Key differences: Pygocentrus cariba, found in the Orinoco basin, is very similar to P. nattereri but often has a more yellowish or golden hue on its flanks and a distinct black spot behind the operculum (gill cover), which is usually absent or less pronounced in P. nattereri.
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