-51.726665, -3.3655555: 10 Treatments

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Leporinus torrenticola   new species  Birindelli, José L. O., Teixeira, Tulio F. & Britski, Heraldo A., 2016, Two new species of Leporinus Agassiz, 1929 (Characiformes: Anostomidae) from tributaries of the lower Amazon basin in Brazil, Zootaxa 4178 (1), pp. 97-115: 106-110 106-110
Parancistrus nudiventris   new species  Rapp Py-Daniel, Lúcia H. & Zuanon, Jansen, 2005, Description of a new species of Parancistrus (Siluriformes: Loricariidae) from the rio Xingu, Brazil, Neotropical Ichthyology 3 (4), pp. 571-577: 573-576 573-576
Hemiodus tucupi   new species  Silva, Ivanilza Da Silveira, Nogueira, Acácio Freitas, Netto-Ferreira, Andre Luiz, Akama, Alberto & Dutra, Guilherme Moreira, 2020, A new species of Hemiodus Müller (Characiformes: Hemiodontidae) from the lower Rio Xingu, Brazil, Zootaxa 4751 (1), pp. 172-180: 173-176 173-176
Uchuca ferreirai     Tavares, Gustavo Costa, Sovano, Rafael Segtowick Da Silva & Gutjahr, Ana Lúcia Nunes, 2016, Clarification of the katydid genus Uchuca Giglio-tos, 1898 (Orthoptera: Tettigoniidae): A new species in the Brazilian Amazon Rainforest, Zootaxa 4139 (4), pp. 542-550: 547-548 547-548
Astyanax dnophos   new species  Lima, Flávio C. T. & Zuanon, Jansen, 2004, A new species of Astyanax (Characiformes: Characidae) from the rapids of the lower rio Xingu, Brazil, Neotropical Ichthyology 2 (3), pp. 117-122: 118-120 118-120
Baryancistrus xanthellus   new species  Py-Daniel, Lúcia Rapp, Zuanon, Jansen & Oliveira, Renildo Ribeiro de, 2011, Two new ornamental loricariid catfishes of Baryancistrus from rio Xingu drainage (Siluriformes: Hypostominae), Neotropical Ichthyology 9 (2), pp. 241-252: 242-247 242-247
Anostomoides passionis   new species  Santos, Geraldo Mendes Dos & Zuanon, Jansen, 2006, Anostomoides passionis, a new fish species from rio Xingu, Brasil (Characiformes: Anostomidae), Zootaxa 1168 (1), pp. 59-68: 60-66 60-66
Spectracanthicus zuanoni   new species  Chamon, Carine C. & Rapp Py-Daniel, Lúcia H., 2014, Taxonomic revision of Spectracanthicus Nijssen & Isbrücker (Loricariidae: Hypostominae: Ancistrini), with description of three new species, Neotropical Ichthyology 12 (1), pp. 1-25: 19-22 19-22
Chiasmocleis avilapiresae   sp. nov.  Peloso, Pedro Luiz Vieira & Sturaro, Marcelo José, 2008, A new species of narrow-mouthed frog of the genus Chiasmocleis Méhelÿ 1904 (Anura, Microhylidae) from the Amazonian rainforest of Brazil, Zootaxa 1947, pp. 39-52: 40-47 40-47
Pyrrhulina capim   new species  Vieira, Lorena S. & Netto-Ferreira, André L., 2019, New species of Pyrrhulina (Teleostei: Characiformes: Lebiasinidae) from the eastern Amazon, Pará, Brazil, Neotropical Ichthyology 17 (2), pp. 1-8: 2-7 2-7