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      A new ‘horned’ Stenocercus from the highlands of southeastern Brazil, and redescription of Stenocercus tricristatus (Reptilia: Tropiduridae)

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          Abstract

          ABSTRACT A new species of the lizard genus Stenocercus Duméril & Bibron, 1837 is described based on six specimens from Serra da Canastra, Minas Gerais, southeastern Brazil. Similar to S. tricristatus (Duméril, 1851), S. dumerilii (Steindachner, 1867), S. quinarius Nogueira & Rodrigues, 2006, and S. squarrosus Nogueira & Rodrigues, 2006, the new species has a pyramidal head and an enlarged, dorsally projected post-supraciliary scale, like a small horn. It is most similar to S. tricristatus, from which it differs in having a more elongated head in ventral view; a larger number of scales around midbody; a distinctly enlarged, smooth preauricular scale; and probably a larger body size. Moreover, the new species has distinctly keeled scales, with phylloid and mucronate dorsals; no enlarged supraoculars; no neck folds; a vertebral, and a pair of dorsolateral and (weak) lateral crests. A redescription of S. tricristatus is presented for comparison with the new species.

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          Most cited references 30

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          Lizards of Brazilian Amazonia (Reptilia: Squamata)

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            Ecology and social organization of the maned wolf (Chrysocyon brachyurus)

             James M Dietz (1984)
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              Vicariance and endemism in a Neotropical savanna hotspot: distribution patterns of Cerrado squamate reptiles

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                zool
                Zoologia (Curitiba)
                Zoologia (Curitiba)
                Sociedade Brasileira de Zoologia (Curitiba, PR, Brazil )
                1984-4670
                1984-4689
                June 2019
                : 36
                : 0
                Affiliations
                São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Instituto de Biociências orgdiv2Departamento de Ecologia Brazil
                Belém Distrito Federal orgnameMinistério da Ciência, Tecnologia e Inovação orgdiv1Coordenação de Zoologia Brazil
                Article
                S1984-46702019000100304
                10.3897/zoologia.36.e22909

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 0
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