Long, torpedo-shaped body with dark green to black coloration and reddish highlights near the caudal region. Large, armored scales with metallic sheen.
Long, torpedo-shaped body with olive to dark green coloration, lighter underside, and reddish accents near the tail. Large, tough scales with metallic reflections.
Long, cylindrical body with olive to black coloration, reddish-orange markings near the tail, and heavy armored scales.
More slender and elongated body than other Arapaima species; dark olive-green coloration with reddish markings near the tail.
Elongated body, olive-green to black coloration with reddish-orange accents near the tail, large armored scales, upward-facing mouth.
