Distribution and Habitat
O. tamandua is a relatively rare species found in the Amazon River basin, and is most abundant in the Rio Negro and the Rio Purus. It inhabits both whitewater and blackwater rivers, usually occurring at depths of 6-10 m and occasionally shallower or deeper, but never beyond 20 m down. It is absent from floodplain channels, river edges, and small lakes. A few specimens are known from the confluence of the Rio Solimões and the Rio Negro, and from Lake Prato, Anavilhanas.
Read more about this topic: Orthosternarchus Tamandua
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