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Boulengerella species can exceed 3 feet in length.
The bicuda/argulha (Boulengerella maculata) is an agressive, fast water fish that can be found in many of the waters holding the previously-mentioned glamor species. It can reach sizes of over 15-pounds and is a powerful, acrobatic fighter. Once hooked, they launch themselves into the air, rattling their gills and throwing hooks in a fashion that would make a tarpon jealous. Larger specimens are found in the fast water rivers of northern Brazil (Roraima state) and Guyana.
PicĂșa/cachorro (Acestrorhynchus falcatus) looks like a freshwater barracuda. It roams about (sometimes mixed in with schools of smaller peacock bass) in small packs terrorizing schools of baitfish. These fish don't grow very big (3-pounds maximum), but they're extremely aggressive, plentiful and hard fighting on light conventional rods or a 5-6-weight fly rod.
Sharp teeth and high speed runs make both bicuda and cachorro real hard on fancy flies.


Both make an interesting bycatch.
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