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

  • Hussam Zaher Universidade de São Paulo; Museu de Zoologia
  • Ivan Souza Universidade de São Paulo; Museu de Zoologia
  • David J. Gower The Natural History Museum; Department of Zoology
  • Erika Hingst-Zaher Universidade de São Paulo; Museu de Zoologia
  • Nelson Jorge da Silva Jr Universidade Católica de Goiás; Centro de Estudos e Pesquisas Biológicas
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
How to Cite
Zaher, H., Souza, I., Gower, D., Hingst-Zaher, E., & Silva Jr, N. (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
Section
naodefinida

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