Journal
ACTA ZOOLOGICA
Volume 81, Issue 2, Pages 177-193Publisher
WILEY
DOI: 10.1046/j.1463-6395.2000.00048.x
Keywords
reptila; serpentes; respiratory; ventilation
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The larynx and glottal tube were examined in 10 specimens each of 22 snake species. Qualitative analysis through dissection and clearing and staining revealed distinct morphological variation in the cartilage and intrinsic musculature of the larynx. Quantitative analysis of nine morphometric characters revealed laryngeal sexual dimorphism in three species, significant interspecific differences in the coefficients for every morphometric feature regressed on body size, no significant intraspecific differences in the log transformed means, and poor discrimination of species using principal component analysis. The observed variations in laryngeal morphology did not correlate with the phylogeny of the species, or with habitat preferences.
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