-47.037, -23.946: 10 Treatments

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Guasuctenus vittatissimus     Polotow, Daniele & Brescovit, Antonio D., 2019, Guasuctenus gen. nov., a new Neotropical spider genus of Ctenidae (Araneae), Zootaxa 4624 (4), pp. 539-550: 546-548 546-548
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
Progonyleptoidellus striatus     Benedetti, Alípio R. & Pinto-Da-Rocha, Ricardo, 2019, Description of two new species of Progonyleptoidellus (Opiliones: Gonyleptidae), with a cladistic analysis of the genus, an overview of relationships in the K 92 group, and taxonomic notes on , Zootaxa 4691 (5), pp. 461-490: 484-485 484-485
Chrosiothes perfidus     Rodrigues, Everton Nei Lopes, 2017, Six new species and new records of the spider genus Chrosiothes from Brazil with the description of the female of Chrosiothes venturosus Marques & Buckup, 1997 (Araneae, Theridiidae, Spinthari, Zootaxa 4329 (3), pp. 219-236: 234 234
Mecynogea bigibba     Martins, Pedro H. & Santos, Adalberto J., 2018, Morphology and taxonomy of the orb-weaving spider genus Mecynogea, and a peculiar species of Argiope (Araneae, Araneidae), Zootaxa 4415 (3), pp. 423-451: 438 438
Extraordinarius andrematosi   sp. nov.  Rheims, Cristina A., 2019, Extraordinarius gen. nov., a new genus of Sparianthinae spiders (Araneae: Sparassidae) from southeastern Brazil, Zootaxa 4674 (1), pp. 83-99: 86-88 86-88
Mairata butantan   n. sp.  Calvanese, Victor C., Brescovit, Antonio D. & Bonato, Lucio, 2019, Revision of the Neotropical species of Aphilodontinae (Geophilomorpha, Geophilidae), with eight new species and a first phylogenetic analysis of the subfamily, Zootaxa 4698 (1), pp. 1-72: 66 66
Mairata butantan   new species  Calvanese, Victor C., Brescovit, Antonio D. & Bonato, Lucio, 2019, Revision of the Neotropical species of Aphilodontinae (Geophilomorpha, Geophilidae), with eight new species and a first phylogenetic analysis of the subfamily, Zootaxa 4698 (1), pp. 1-72: 43-44 43-44
Ariadna crassipalpa     Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114: 29-33 29-33
Ariadna mollis     Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114: 33-37 33-37