Sexual Dimorphism and Geographic Variation of the White-lipped Pit Viper (Trimeresurus albolabris) in China

DOI Web Site 参考文献27件
  • ZHU Fei
    School of Life Sciences, Guizhou Normal University
  • CHEN Ling
    School of Life Sciences, Guizhou Normal University
  • GUO Peng
    Faculty of Agriculture, Forest and Food Engineering, Yibin University
  • XU Yu
    School of Life Sciences, Guizhou Normal University
  • LIU Qin
    Faculty of Agriculture, Forest and Food Engineering, Yibin University

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  • Sexual Dimorphism and Geographic Variation of the White-lipped Pit Viper (<i>Trimeresurus albolabris</i>) in China

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<p>Sexual dimorphism and geographic variation are common in snakes. The white-lipped pitviper (Trimeresurus albolabris) is a common and widely distributed venomous snake species throughout the Southeast Asia. We report on the sexual dimorphism and geographic variation of T. albolabris in China. Ninety-nine specimens (57 females and 42 males) were examined by using analysis of variance, analysis of covariance, principal component analysis, and other statistical methods for 68 morphological characters. The result showed that T. albolabris displays significant sexual dimorphism in several external characters. Females have a longer snout-vent length, wider anal scales, and larger head size than males, whilst males exhibit a longer tail length and larger number of subcaudal scales. No significant geographic variation was detected, suggesting the absence of obvious morphological differentiation among local populations in China.</p>

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