-55.12861, -8.173612: 10 Treatments

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Microschemobrycon cryptogrammus   sp. nov.  Ohara, Willian M., Jerep, Fernado C. & Cavallaro, Marcel R., 2019, A new species of Microschemobrycon (Characiformes: Characidae) from Rio Xingu basin, Brazil, Zootaxa 4576 (2), pp. 326-336 : 327-332 327-332
Dinoponera mutica     Dias, Amanda Martins & Lattke, John Edwin, 2021, Large ants are not easy - the taxonomy of Dinoponera Roger (Hymenoptera: Formicidae: Ponerinae), European Journal of Taxonomy 784 (1), pp. 1-66 : 45-47 45-47
Actinopus caxiuana   sp. nov.  Miglio, Laura Tavares, Pérez-Miles, Fernando & Bonaldo, Alexandre B., 2020, Taxonomic Revision of the Spider Genus Actinopus Perty, 1833 (Araneae, Mygalomorphae, Actinopodidae), Megataxa 2 (1), pp. 1-256 : 108-111 108-111
Thaumasia argenteonotata     Cruz Da Silva, Estevam L. & Carico, James E., 2012, 3567, Zootaxa 3567, pp. 1-64 : 9-11 9-11
Falconina gracilis     García, Fabián & Bonaldo, Alexandre B., 2023, Taxonomic revision of the soldier spider genus Falconina Brignoli, 1985 (Araneae: Corinnidae: Corinninae), Zootaxa 5343 (3), pp. 201-242 : 205-220 205-220
Hassar gabiru   sp. nov.  Birindelli, José L. O., Fayal, Danielle F. & Wosiacki, Wolmar B., 2011, Taxonomic revision of thorny catfish genus Hassar (Siluriformes: Doradidae), Neotropical Ichthyology 9 (3), pp. 515-542 : 520-525 520-525
Bryconadenos weitzmani   sp. nov.  Menezes, Naércio A., Netto-Ferreira, André Luiz & Ferreira, Katiane M., 2009, A new species of Bryconadenos (Characiformes: Characidae) from the rio Curuá, rio Xingu drainage, Brazil, Neotropical Ichthyology 7 (2), pp. 147-152 : 148-150 148-150
Harttia rondoni   sp. nov.  Oyakawa, Osvaldo T., Fichberg, Ilana & Py-Daniel, Lucia Rapp, 2018, Three new species of Harttia (Loricariidae: Loricariinae) from Serra do Cachimbo, Rio Xingu basin, Pará, Northern Brazil, Zootaxa 4387 (1), pp. 75-90 : 76-78 76-78
Baryancistrus xanthellus   sp. nov.  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
Leporinus torrenticola   sp. nov.  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