Variation among young individuals of Bothrops neuwiedi complex (Serpentes, Viperidae, Crotalinae)

Authors

  • Vinícius Xavier Universidade de São Paulo; Instituto de Biociências; Departamento de Zoologia

DOI:

https://doi.org/10.11606/issn.2316-9079.v1i1p11-30

Keywords:

Bothrops neuwiedi complex, Crotalinae, Viperidae, Serpentes, Sexual dimorphism, geographic variation, ontogenetic variation

Abstract

Variation among young individuals of Bothrops neuwiedi complex (Serpentes, Viperidae, Crotalinae). External morphological charactcrs of 141 young specimens (69 males and 72 females) of the Bothrops neuwiedi complex were analyzed. Regression analysis was used in the study of morphometric characters and principal component analysis was used in the study of meristic and qualitative charactcrs. Sexual dimorphism was confirmed in the meristic and morphometric characters. Males showed higher counts of subcaudals and longer tails. Females showed eventually higher number of vendais and dorsal rows, and larger heads. Six different drawing patterns were diagnosed and can indicate the existence of different spccics. Ontogenetic variation was described.

Downloads

Download data is not yet available.

Downloads

Published

2002-06-01

Issue

Vol. 1 No. 1 (2002)

Section

Articles

License

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.

How to Cite

Xavier, V. (2002). Variation among young individuals of Bothrops neuwiedi complex (Serpentes, Viperidae, Crotalinae). Phyllomedusa: Journal of Herpetology, 1(1), 11-30. https://doi.org/10.11606/issn.2316-9079.v1i1p11-30