-63.333332, -6.0: 6 Treatments

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Trigona (Nostotrigona) daianeae   sp. nov.  Ribeiro, Cristiano Feitosa, Nogueira, David Silva, Oliveira, Favízia Freitas De & Oliveira, Marcio Luiz De, 2023, Review of Trigona (Nostotrigona) Engel, 2021 from Brazil with description of three new species (Hymenoptera: Apidae: Meliponini), Zootaxa 5306 (3), pp. 349-366 : 355-357 355-357
Myloplus nigrolineatus   sp. nov.  Ota, Rafaela Priscila, Machado, Valéria Nogueira, Andrade, Marcelo C., Collins, Rupert A., Farias, Izeni Pires & Hrbek, Tomas, 2020, Integrative taxonomy reveals a new species of pacu (Characiformes: Serrasalmidae: Myloplus) from the Brazilian Amazon, Neotropical Ichthyology (e 190112) 18 (1) : -1 -1
Hypostomus carinatus     Zawadzki, Cláudio Henrique, Oliveira, Renildo Ribeiro De, Oliveira, Andreza Dos Santos & Py-Daniel, Lúcia Rapp, 2020, Redescription of Hypostomus carinatus (Steindachner 1881) (Siluriformes: Loricariidae) from the rio Amazonas basin in Brazil, Zootaxa 4750 (2), pp. 191-203 : 192-198 192-198
Rhinotridens chromocaudatus   sp. nov.  Datovo, Alessio, Ochoa, Luz, Vita, George, Presti, Paulo, Ohara, William M. & Pinna, Mario C. C. de, 2023, A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae), Neotropical Ichthyology (e 230076) 21 (3), pp. 1-22 : 6-15 6-15
Hyphessobrycon bayleyi   sp. nov.  Lima, Flávio C. T., Bastos, Douglas A., Rapp Py-Daniel, Lúcia H. & Ota, Rafaela P., 2022, A new sexually dimorphic Hyphessobrycon from the western Amazon basin (Characiformes: Characidae), Zootaxa 5116 (2), pp. 253-266 : 254-262 254-262
Diplosynapsis uncinata   sp. nov.  Vieira, Rodrigo & Rafael, José Albertino, 2016, Revision of Diplosynapsis Enderlein, 1914 (Diptera, Asilidae, Asilinae) with description of four new species, Zootaxa 4208 (2), pp. 127-148 : 146 146