-54.7, -26.033333: 10 Treatments

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Hypostomus derbyi     Garavello, Julio César, Britski, Heraldo Antônio & Zawadzki, Claudio Henrique, 2012, The cascudos of the genus Hypostomus Lacépède (Ostariophysi: Loricariidae) from the rio Iguaçu basin, Neotropical Ichthyology 10 (2), pp. 263-283 : 269-273 269-273
Goeldia nigra     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 : 177-180 177-180
Mesabolivar chapeco   sp. nov.  Huber, Bernhard A., 2018, The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits, Zootaxa 4395 (1), pp. 1-178 : 91-95 91-95
Tetragnatha cladognatha     Castanheira, Pedro de Souza, Baptista, Renner Luiz Cerqueira & Oliveira, Francisca Samia Martins, 2022, Five new species of the long-jawed orb-weaving spider genus Tetragnatha (Araneae, Tetragnathidae) in South America, with a key to the species from Argentina and Brazil, Evolutionary Systematics 6 (2), pp. 175-210 : 175 175
Neocarus misiones     Araújo, Marcel Santos De, Palma, Antonella Di & Feres, Reinaldo José Fazzio, 2020, Catalog of the Opilioacarida (Acari: Parasitiformes), Zootaxa 4895 (3), pp. 332-356 : 344-345 344-345
Neocarus misiones   sp. nov.  Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira & Klompen, Hans, 2020, The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species, Acarologia 60 (3), pp. 505-519 : 508-511 508-511
Mesabolivar iguazu     Huber, Bernhard A., 2018, The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits, Zootaxa 4395 (1), pp. 1-178 : 96-98 96-98
Orasema rapo     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 81-84 81-84
Panaeolus cyanescens     Batista, Adriana J., Almirón, Hugo A., Forlin, Gisela, Ramírez, Natalia A., Popoff, Orlando F. & Niveiro, Nicolás, 2025, & lt; i & gt; Psilocybe cubensis & lt; / i & gt; y & lt; i & gt; Panaeolus cyanescens & lt; / i & gt; (Basidiomycota, Agaricales), & lt; i & gt; & lt; / i & gt; dos especies de hongos alucinógenos en el NE de Argentina, Boletin de la Sociedad Argentina de Botanica 60 (1), pp. 5-19 : 7-11 7-11
Orthobula sudamericana   sp. nov.  Piñanez Espejo, Yolanda M. G., Munévar, Ana & Kochalka, John A., 2022, A new species of Orthobula Simon, 1897 (Araneae: Trachelidae) from South America, Zootaxa 5124 (1), pp. 75-80 : 76-78 76-78