Redescription of Atractus albuquerquei (Serpentes: Colubridae: Dipsadinae), with comments on geographical distribution and intraspecific variation

Authors

  • Hussam Zaher Universidade de São Paulo; Museu de Zoologia Author
  • Ivan Souza Universidade de São Paulo; Museu de Zoologia Author
  • David J. Gower The Natural History Museum; Department of Zoology Author
  • Erika Hingst-Zaher Universidade de São Paulo; Museu de Zoologia Author
  • Nelson Jorge da Silva Jr Universidade Católica de Goiás; Centro de Estudos e Pesquisas Biológicas Author

DOI:

https://doi.org/10.1590/S0031-10492005000200001

Keywords:

Serpentes, Dipsadinae, Atractus albuquerquei, variation, distribution

Abstract

Atractus albuquerquei Cunha and Nascimento, 1983 was previously known from a holotype from eastern Pará, and 15 specimens from Rondônia and Acre, all in Brazil. We report on 23 additional specimens from the Brazilian states of Rondônia, Goiás, Mato Grosso, and Mato Grosso do Sul. These specimens extend the known range of A. albuquerquei substantially, and beyond the southern limits of the Amazon basin. The holotype of A. albuquerquei is redescribed and intraspecific variation in external morphology, hemipenes, and colour is documented. Sexual dimorphism exists in total length, and number of ventral (significantly greater in females) and subcaudal scales (greater in males). There is a significant correlation between number of subcaudal scales and longitude (decreasing from East to West) for both males and females.

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Published

2005-01-01

Issue

Vol. 45 No. 2 (2005)

Section

naodefinida

License

Responsibility: The scientific content and the opinions expressed in the manuscript are the sole responsibility of the author(s).

Copyrights: Papéis Avulsos de Zoologia. The journal is licensed under a Creative Commons attribution-type CC-BY.

How to Cite

Zaher, H., Souza, I., Gower, D. J., Hingst-Zaher, E., & Silva Jr, N. J. da. (2005). Redescription of Atractus albuquerquei (Serpentes: Colubridae: Dipsadinae), with comments on geographical distribution and intraspecific variation . Papéis Avulsos De Zoologia, 45(2), 19-32. https://doi.org/10.1590/S0031-10492005000200001