The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

The 2017/18  impact factor of The Herpetological Journal is 1.268

ISSN 0268-0130


pdf 04. A multivariate investigation into the population systematics of Dendrelaphis tristis (Daudin, 1803) and Dendrelaphis schokari (Kuhl, 1820): revalidation of Dendrophis chairecacos Boie, 1827 (Serpentes: Colubridae)

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pp. 193-200
Authors: Rooijen, Johan Van & Vogel, Gernot

Abstract: The population systematics of the closely related colubrid snakes Dendrelaphis tristis (Daudin, 1803) and Dendrelaphis schokari (Kuhl, 1820) were investigated on the basis of morphological data taken from 82 museum specimens. Multivariate and univariate analyses of these data reveal the existence of a third species that occurs sympatrically with D. tristis in south India. This hitherto unrecognized species agrees with the description of Dendrophis chairecacos Boie, 1827 which is consequently revalidated under the combination Dendrelaphis chairecacos (Boie, 1827). A neotype is designated to objectively define this taxon. Dendrelaphis chairecacos inhabits south India and D. schokari inhabits Sri Lanka. D. tristis occurs sympatrically with both species, ranging from Sri Lanka through most of India to Nepal. A key to the three species is provided. Observed differences in head morphology are probably correlates of niche partitioning between D. tristis on the one hand and D. chairecacos and D. schokari on the other hand. The revalidation of D. chairecacos strengthens the notion that Sri Lanka and the Western Ghats are faunally more distinct than previously recognized.

Keywords: SRI LANKA, EASTERN GHATS, WESTERN GHATS, MULTIVARIATE ANALYSIS, INDIA, TAXONOMY, DENDRELAPHIS CHAIRECACOS

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IMPORTANT NOTE - JUNE 2020

Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

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