1. The Amazon leaffish, Monocirrhus polyacanthus belong to a family of small fishes found in coastal drainages of northeastern South America, the Rio Negro basin and distributed throughout the Amazon and the Orinoco.
2. The species was previously known from three localities in Bolivia.
3. Here, researchers present new occurrence locations in the Madre de Dios River watershed in northern Bolivia. In addition, we conducted a review of the currently known distribution in South America, including the habitats in which leaf fish were captured.
Study and Journal: "New records of the leaffish Monocirrhus polyacanthus (Perciformes, Polycentridae) in the upper Madeira River basin, Bolivia" from Ecología en Bolivia
WCS Co-Author(s): Gustavo Alvarez , Responsible Community Wildlife Management Projects ; Guido Miranda , Coordinador Manejo Vida Silvestre, WCS Bolivia Program