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Arnold's characins (Arnoldichthys); red-eyed characins (Arnoldichthys) | |||
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Arnold's characin (Arnoldichthys); niger tetra (Arnoldichthys spilopterus); red-eyed characin (Arnoldichthys) | |||
Arnold's characin (Arnoldichthys spilopterus); red-eyed characin (Arnoldichthys spilopterus) |