-48.360832, -10.868055: 11 Treatments

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Potamotrygon rex   sp. nov.  De Carvalho, Marcelo R., 2016, Potamotrygon rex, a new species of Neotropical freshwater stingray (Chondrichthyes: Potamotrygonidae) from the middle and upper rio Tocantins, Brazil, closely allied to Potamotrygon henlei (Ca, Zootaxa 4150 (5), pp. 537-565: 538-552 538-552
Centromochlus akwe   new species  Coelho, Fernanda L., Chamon, Carine C. & Sarmento-Soares, Luisa M., 2021, A new species of driftwood catfish Centromochlus Kner, 1858 (Siluriformes Auchenipteridae, Centromochlinae) from Tocantins-Araguaia River drainage, Zootaxa 4950 (1), pp. 149-165: 150-159 150-159
Leptomantispa chaos     Alvim, Breno Ganns Chaves, Machado, Renato Jose Pires & Krolow, Tiago Kütter, 2019, Mantidflies (Neuroptera, Mantispidae) from Tocantins state (Brazil): distribution and identification key, Check List 15 (2), pp. 275-285: 282 282
Tetragonopterus akamai   new species  Araujo, Leonardo B. S. & Lucinda, Paulo H. F., 2014, A new species of the genus Tetragonopterus Cuvier, 1816 (Ostariophysi: Characiformes: Characidae) from the rio Tocantins drainage, Brazil, Neotropical Ichthyology 12 (2), pp. 309-315: 310-314 310-314
Tetragonopterus denticulatus     Silva, Gabriel S. C., Melo, Bruno F., Oliveira, Claudio & Benine, Ricardo C., 2016, Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species, Zootaxa 4200 (1), pp. 1-46: 31 31
Moenkhausia hysterosticta   new species  Paulo H. F. Lucinda, Luiz R. Malabarba & Ricardo C. Benine, 2007, On a new species of the genus Moenkhausia Eigenmann (Ostariophysi: Characidae)., Zootaxa 1525, pp. 61-68: 62-67 62-67
Jupiaba elassonaktis   new species  Thiago N. A. Pereira & Paulo H. F. Lucinda, 2007, A new species of Jupiaba Zanata, 1997 (Ostariophysi, Characiformes, Characidae) from the rio Tocantins drainage, Brazil., Zootaxa 1614, pp. 53-60: 54-57 54-57
Potamotrygon garmani   sp. nov.  João Pedro Fontenelle & Marcelo R. De Carvalho, 2017, Systematic revision of the Potamotrygon scobina Garman, 1913 species-complex (Chondrichthyes: Myliobatiformes: Potamotrygonidae), with the description of three new freshwater stingray species , Zootaxa 4310 (1), pp. 1-63: 43-54 43-54
Hyphessobrycon ataktos   new species  Marinho, Manoela M. F., Dagosta, Fernando C. P. & Birindelli, José L. O., 2014, Hemigrammus ataktos: a new species from the rio Tocantins basin, central Brazil (Characiformes: Characidae), Neotropical Ichthyology 12 (2), pp. 257-264: 258-261 258-261
Ariadna boliviana     Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114: 59-62 59-62
Runcinioides argenteus     Faleiro, Bárbara T. & Santos, Adalberto J., 2019, Revision of the crab-spiders of the genus Runcinioides Mello-Leitão, 1929 (Araneae, Thomisidae), Zootaxa 4567 (1), pp. 25-46: 29-33 29-33