-53.759724, -27.36861: 11 Treatments

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Epicadinus villosus     Prado, André Wanderley Do, Baptista, Renner Luiz Cerqueira & Machado, Miguel, 2018, Taxonomic review of Epicadinus Simon, 1895 (Araneae: Thomisidae), Zootaxa 4459 (2), pp. 201-234: 223-229 223-229
Callibaetis (Callibaetis) willineri     Cruz, Paulo Vilela, Salles, Frederico Falcão & Hamada, Neusa, 2017, Additions and corrections to the systematics of mayfly species assigned to the genus Callibaetis Eaton 1881 (Ephemeroptera: Baetidae) from South America, Zootaxa 4231 (4), pp. 500-534: 527 527
Macropygium reticulare     Silva, Layse Mitsue Harada Da & Campos, Luiz Alexandre, 2021, Revision of Macropygium Spinola, 1837 (Hemiptera: Pentatomidae: Ochlerini) with the revalidation of three species and the description of one new species, Zootaxa 4958 (1), pp. 605-627: 612-617 612-617
Callibaetis (Abaetetuba) fasciatus     Cruz, Paulo Vilela, Salles, Frederico Falcão & Hamada, Neusa, 2017, Four new species of Callibaetis Eaton (Ephemeroptera: Baetidae), nymphal description of Callibaetis (Abaetetuba) fasciatus (Pictet) and keys for South American species of Callibaetis, Zootaxa 4250 (3), pp. 229-261: 235-240 235-240
Paracloeodes ibicui     Cruz, Paulo Vilela, Salles, Frederico Falcão & Hamada, Neusa, 2018, Contribution to the taxonomy of Paracloeode s Day 1955 (Ephemeroptera: Baetidae) from South America, Zootaxa 4403 (1), pp. 1-49: 19-25 19-25
Zischkaia pacarus     Nakahara, Shinichi, Zacca, Thamara, Dias, Fernando M. S., Dolibaina, Diego R., Xiao, Lei, Espeland, Marianne, Casagrande, Mirna , 2019, Revision of the poorly known Neotropical butterfly genus Zischkaia Forster, 1964 (Lepidoptera, Nymphalidae, Satyrinae), with descriptions of nine new species, European Journal of Taxonomy 551, pp. 1-67: 38-44 38-44
Nyetnops guarani     Sánchez-Ruiz, Alexander, Brescovit, Antonio D. & Bonaldo, Alexandre B., 2020, Revision of the spider genus Nyetnops Platnick & Lise (Araneae: Caponiidae) with proposition of the new genus Nopsma, from Central and South America, Zootaxa 4751 (3), pp. 461-486: 463 463
Crenicichla hadrostigma   new species  de Lucena, Carlos A. S., 2007, Two new species of the genus Crenicichla Heckel, 1840 from the upper rio Uruguay drainage (Perciformes: Cichlidae), Neotropical Ichthyology 5 (4), pp. 449-456: 450-453 450-453
Odontesthes yucuman   new species  Wingert, Juliana M., Ferrer, Juliano & Malabarba, Luiz R., 2017, Review of the Odontesthes perugiae species group from Río de La Plata drainage, with the description of a new species (Atherinomorpha: Atherinopsidae), Zootaxa 4250 (6), pp. 501-528: 514-524 514-524
Gymnotus inaequilabiatus     Craig, Jack M., Malabarba, Luiz R., Crampton, William G. R. & Albert, James S., 2018, Revision of Banded Knifefishes of the Gymnotus carapo and G. tigre clades (Gymnotidae Gymnotiformes) from the Southern Neotropics, Zootaxa 4379 (1), pp. 47-73: 67-69 67-69
Brycon orbignyanus     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: 90-98 90-98