Nova espécie de Helicops Wagler, 1830 (Serpentes, Colubridae) do rio Tapajós, Amazônia, Brasil

Autores

  • Jossehan Galúcio da Frota Pontifícia Universidade Católica do Rio Grande do Sul; Faculdade de Biociências Museu de Ciência e Tecnologia; Laboratório de Herpetologia

DOI:

https://doi.org/10.11606/issn.2316-9079.v4i1p61-67

Palavras-chave:

Serpentes, Colubridae, Helicops tapajonicus sp. nov., norte do Brasil Amazônia, rio Tapajós

Resumo

Within the 14 species of Helicops known, five of them are distributed in Brazilian Amazon region. Here I describe a new species of Helicops based on three specimens from Tapajós river, western Pará state, Brazil. The new species is characterized by an opaque, green-moss uniform coloration on the vertebral and paravertebral scales, extending until the end of the tail, becoming yellow-greenish in the paraventral region, without spots, blotches or stripes on the whole dorsum. It differs from all species known of Helicops by the dorsal color pattern. Morphologically, the new species seems like H. leopardinus (as indicated by the number of dorsal scale rows, the number of ventral scales, and the number of teeth), but it has smaller lobes in the hemipenis and a very distinct color pattern. Illustrations of the type material and a dicotomic key are presented to help to distinguish the new species from other species of Helicops from Brazilian Amazon region.

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Publicado

2005-06-01

Edição

v. 4 n. 1 (2005)

Seção

Artigos

Licença

All material originally published in Phyllomedusa belongs to Escola Superior de Agricultura Luiz de Queiroz - Universidade de São Paulo. All contents are under a license of Creative Commons BY-NC-ND.

Como Citar

Frota, J. G. da. (2005). Nova espécie de Helicops Wagler, 1830 (Serpentes, Colubridae) do rio Tapajós, Amazônia, Brasil. Phyllomedusa: Journal of Herpetology, 4(1), 61-67. https://doi.org/10.11606/issn.2316-9079.v4i1p61-67