-51.607777, -28.783888: 10 Treatments

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Guasuctenus longipes   comb. nov.  Polotow, Daniele & Brescovit, Antonio D., 2019, Guasuctenus gen. nov., a new Neotropical spider genus of Ctenidae (Araneae), Zootaxa 4624 (4), pp. 539-550 : 543-545 543-545
Epicadus rubripes     Machado, Miguel, Teixeira, Renato Augusto & Lise, Arno Antonio, 2018, There and back again: More on the taxonomy of the crab spiders genus Epicadus (Thomisidae: Stephanopinae), Zootaxa 4382 (3), pp. 501-530 : 516 516
Homocopris williami   sp. nov.  Génier, François & Darling, James D. G., 2024, Revision of the South American genera Andinocopris new genus and Homocopris Burmeister, 1846 (Coleoptera: Scarabaeidae: Scarabaeinae: Homocoprini new tribe), European Journal of Taxonomy 925, pp. 220-267 : 254-259 254-259
Eurycheilichthys vacariensis   sp. nov.  Reis, Roberto E., 2017, Unexpectedly high diversity in a small basin: A taxonomic revision of Eurycheilichthys (Siluriformes: Loricariidae), with descriptions of seven new species, Neotropical Ichthyology 15 (1), No. e 160068, pp. 1-28 : 24-26 24-26
Eustala minuscula     Poeta, Maria Rita Muniz, 2014, The orb-weaving spider genus Eustala Simon, 1895 (Araneae, Araneidae): eight new species, redescriptions, and new records, Zootaxa 3872 (5), pp. 440-466 : 458-459 458-459
Trichomycterus balios   sp. nov.  Ferrer, Juliano & Malabarba, Luiz R., 2013, Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil, Neotropical Ichthyology 11 (2), pp. 217-246 : 218-231 218-231
Eurycheilichthys paucidens   sp. nov.  Reis, Roberto E., 2017, Unexpectedly high diversity in a small basin: A taxonomic revision of Eurycheilichthys (Siluriformes: Loricariidae), with descriptions of seven new species, Neotropical Ichthyology 15 (1), No. e 160068, pp. 1-28 : 19-22 19-22
Trichomycterus diatropoporos     Bertaco, Vinicius A. & Azevedo, Marco A., 2018, Type catalog from the fish collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4392 (1), pp. 83-100 : 96 96
Eurycheilichthys planus   sp. nov.  Reis, Roberto E., 2017, Unexpectedly high diversity in a small basin: A taxonomic revision of Eurycheilichthys (Siluriformes: Loricariidae), with descriptions of seven new species, Neotropical Ichthyology 15 (1), No. e 160068, pp. 1-28 : 22-24 22-24
Hisonotus prata   sp. nov.  Carvalho, Tiago Pinto & Reis, Roberto E., 2011, Taxonomic review of Hisonotus Eigenmann & Eigenmann (Siluriformes: Loricariidae: Hypoptopomatinae) from the laguna dos Patos system, southern Brazil, Neotropical Ichthyology 9 (1), pp. 1-48 : 30-33 30-33