-51.91028, -3.5777776: 10 Treatments

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Creagrutus yudja   new species  Netto-Ferreira, Andre L. & Moreira, Cristiano R., 2018, New species of Creagrutus (Ostariophysi; Characiformes; Characidae) from the Rio Xingu drainage, Brazil, Zootaxa 4375 (2), pp. 250-256: 251-253 251-253
Anostomoides nattereri     Assega, Fernando Massayuki & Birindelli, José Luís Olivan, 2019, Taxonomic revision of the genus Anostomoides (Characiformes: Anostomidae), Zootaxa 4646 (1), pp. 124-144: 136-139 136-139
Brycon falcatus     Lima, Flávio C. T., 2017, A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae), Zootaxa 4222 (1), pp. 1-189: 142-158 142-158
Archolaemus janeae   SP. NOV.  Vari, Richard P., Santana, Carlos David De & Wosiacki, Wolmar B., 2012, South American electric knifefishes of the genus Archolaemus (Ostariophysi, Gymnotiformes): undetected diversity in a clade of rheophiles, Zoological Journal of the Linnean Society 165 (3), pp. 670-699: 686-689 686-689
Crenicichla anamiri   new species  Ito, Priscila Madoka M. & Rapp Py-Daniel, Lúcia H., 2015, A small new species of Crenicichla Heckel, 1840 from middle rio Xingu, Brazil (Teleostei: Cichlidae), Neotropical Ichthyology (Neotrop. Ichthyol.) 13 (3), pp. 471-478: 472-477 472-477
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
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
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
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 amacayaca     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: 549 549