Red-tailed Brycon and Similar Species
Brycon erythropterum
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Open the appSeveral fish can be confused with Red-tailed Brycon. Here are the key differences.
Species often confused with {name}
Brycon amazonicus
Brycon amazonicus
Key differences: While also having reddish fins, B. amazonicus typically has a more yellowish or orange caudal fin, and generally does not reach the same maximum size as B. erythropterum. Morphometric and meristic counts are also distinct upon closer examination.
Brycon cephalus
Brycon cephalus
Key differences: Often confused, B. cephalus tends to have a more uniformly silvery body with less intense red coloration on the fins, and its body shape can be slightly more elongated. Detailed fin ray counts and head morphology can differentiate them.
Colossoma macropomum (Tambaqui)
Colossoma macropomum
Key differences: Although also a large characin, Tambaqui has a much deeper, more compressed body, a smaller head relative to its body, and typically lacks the bright red caudal fin of B. erythropterum. Its teeth are also more molar-like, adapted for crushing seeds.
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