Five new species of the Cnemaspis beddomei clade (Squamata: Gekkonidae) from high elevation, evergreen forests of the Southern Western Ghats, India
- 14 June 2024
- journal article
- research article
- Published by Magnolia Press in Zootaxa
- Vol. 5469 (1) , 1-70
Abstract
We describe five new species allied to Cnemaspis beddomei from the Southern Western Ghats, Tamil Nadu, India using morphological data and mitochondrial sequence divergence. The new species are members of the beddomei and anamudiensis subclades within the beddomei clade and are from boulder habitats in evergreen forests in Tenkasi (Cnemaspis tenkasiensis sp. nov.), and the Agamalai (C. agamalaiensis sp. nov.), Anaimalai (C. anaimalaiensis sp. nov. and C. valparaiensis sp. nov.) and Palani Hills (C. anuradhae sp. nov.). The new species can be distinguished from other members of the beddomei clade and each other by a combination of non-overlapping morphological characters including body size, distinct colouration in males, the number or arrangement of dorsal tubercles around the body and paravertebral tubercles, the number of ventral scales across midbody and longitudinal scales from mental to cloaca, tail tuberculation and arrangement of subcaudal scales, besides uncorrected pairwise ND2 and 16S sequence divergence of ≥ 5.4 % and ≥ 2.3 %. The beddomei clade is another example of extreme micro-endemism, all 23 known species are evergreen forest dwellers and are each known from just one or a few closely spaced localities, with three non-sister species known from within one kilometre straight-line distance of each other on the Valparai Plateau, Anaimalai Tiger Reserve. The beddomei subclade is distributed from Agasthyamalai to the Anaimalais while the anamudiensis subclade is restricted to the Anaimalai, Palani and Kannan Devan Hills.Keywords
This publication has 41 references indexed in Scilit:
- The hills are alive with geckos! A radiation of a dozen species on sky islands across peninsular India (Squamata: Gekkonidae, Hemiphyllodactylus) with the description of three new speciesOrganisms Diversity & Evolution, 2019
- PartitionFinder 2: New Methods for Selecting Partitioned Models of Evolution for Molecular and Morphological Phylogenetic AnalysesMolecular Biology and Evolution, 2016
- RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogeniesBioinformatics, 2014
- A general species delimitation method with applications to phylogenetic placementsBioinformatics, 2013
- PartitionFinder: Combined Selection of Partitioning Schemes and Substitution Models for Phylogenetic AnalysesMolecular Biology and Evolution, 2012
- MEGA5: Molecular Evolutionary Genetics Analysis Using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony MethodsMolecular Biology and Evolution, 2011
- Systematics and phylogeny ofPhilautusGistel, 1848 (Anura, Rhacophoridae) in the Western Ghats of India, with descriptions of 12 new speciesZoological Journal of the Linnean Society, 2009
- MrBayes 3: Bayesian phylogenetic inference under mixed modelsBioinformatics, 2003
- Two novel gene orders and the role of light-strand replication in rearrangement of the vertebrate mitochondrial genomeMolecular Biology and Evolution, 1997
- CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choiceNucleic Acids Research, 1994