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The comparative morphology of the larynx in snakes
Author(s) -
Young Bruce A.
Publication year - 2000
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1046/j.1463-6395.2000.00048.x
Subject(s) - biology , sexual dimorphism , intraspecific competition , larynx , morphology (biology) , anatomy , interspecific competition , zoology , ecology
Young, B.A. 2000. The comparative morphology of the larynx in snakes. — Acta Zoologica (Stockholm) 81 : 177–193 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.