Arapaima e espécies parecidas
Arapaima gigas
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Espécies frequentemente confundidas com {name}
Arapaima agassizii
Arapaima agassizii
Principais diferenças: Historically considered a synonym of A. gigas, recent taxonomic revisions suggest it is a distinct species. Differentiated by morphological features such as the number of lateral line scales, dorsal fin rays, and the shape of the head and operculum. Generally smaller than A. gigas.
Arapaima mapae
Arapaima mapae
Principais diferenças: Another recently recognized species, distinguished by specific meristic and morphometric differences, particularly in head shape and scale counts. Its distribution is more restricted.
Arapaima leptosoma
Arapaima leptosoma
Principais diferenças: Described in 2013, this species is characterized by a more slender body (leptosoma means 'slender body') and a unique sensory canal system on the head. It also has a distinct color pattern and fewer scales in the lateral line compared to A. gigas.
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