-58.568054, -27.324167: 10 Treatments

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Adenomera guarani   sp. nov.  Zaracho, Víctor H., Lavilla, Esteban O., Carvalho, Thiago R., Motte, Martha & Basso, Néstor G., 2023, Redescription of Adenomera diptyx (Boettger, 1885) (Anura, Leptodactylidae) and description of a closely related new species, European Journal of Taxonomy 888 (1), pp. 1-45 : 19-41 19-41
Hyetussa mesopotamica     Bustamante, Abel A. & Ruiz, Gustavo R. S., 2017, Systematics of Thiodinini (Araneae: Salticidae: Salticinae), with description of a new genus and twelve new species, Zootaxa 4362 (3), pp. 301-347 : 320 320
Acalypha chaquensis   sp. nov.  Cardiel, José María, Muñoz, Iris Montero & García, Irene Sancho, 2018, Three new species of Acalypha (Euphorbiaceae, Acalyphoideae) from Argentina, Bolivia, Brazil and Paraguay, Phytotaxa 356 (2), pp. 158-166 : 160-162 160-162
Gonatocerus (Cosmocomoidea) logarzoi   sp. nov.  Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 174-176 174-176
Moenkhausia forestii     Mirande, Juan Marcos, Koerber, Stefan, Terán, Guillermo E. & Aguilera, Gastón, 2020, Who’s behind those red eyes? The Moenkhausia oligolepis group in Argentina (Characiformes: Characidae)., Ichthyological Contributions of PecesCriollos 66, pp. 1-7 : 4 4
Ischnopelta guarani   sp. nov.  Rosso, Pedro & Campos, Luiz Alexandre, 2021, Revision of Ischnopelta Stål, 1868 with the description of twenty new species (Hemiptera: Pentatomidae: Discocephalinae), Megataxa 6 (2), pp. 96-184 : 141-144 141-144
Actinopus longipalpis     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 : 172-174 172-174
Eigenmannia trilineata     Peixoto, Luiz Antônio Wanderley, Dutra, Guilherme Moreira & Wosiacki, Wolmar Benjamin, 2015, The Electric Glass Knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species, Zoological Journal of the Linnean Society 175 (2), pp. 384-414 : 405-408 405-408
Loricaria luciae   sp. nov.  Thomas, Matthew R., Rodriguez, Mónica S., Cavallaro, Marcel R., Froehlich, Otávio & Corrêa, Ricardo Macedo, 2013, Loricaria luciae, a new species of whiptail catfish (Siluriformes: Loricariidae) from the Paraguay and lower Paraná River basins of southeastern South America, Zootaxa 3745 (3), pp. 365-378 : 366-375 366-375
Goeldia leechi     Almeida-Silva, Lina M. & Brescovit, Antonio D., 2024, Unraveling the mysteries of Goeldia Keyserling, 1891: revision, description of seven new species and first record from USA (Araneae: Titanoecidae), Zootaxa 5428 (2), pp. 151-193 : 155-161 155-161