Two new species of geckos of the genus Cnemaspis Strauch, 1887 are described from the southern Western Ghats of Kerala. Both species are medium to large sized Cnemaspis and can be differentiated from all other Indian congeners by a suite of distinct morphological characters. Both species are found in the high elevation forests of the two major massifs— Anaimalai Hills and Agasthyamalai Hills and are presently known to have very restricted distributional ranges. The discovery of these novel species highlights the understudied diversity of reptiles in the high mountain ranges of the Western Ghats.
The gecko Cnemaspis littoralis was described by Jerdon in 1853 from a single specimen found in a warehouse on the sea coast of Malabar. A search of the reptile collection of the ZSI failed to uncover any trace of the type specimen of this species; similar searches of the reptile collections of BMNH also proved abortive. Manamendra-Arachchi et al. (2007) also highlighted the need of designating a neotype as the type had been lost. Therefore we ascertain that Jerdon's type of Cnemaspis littoralis is lost. Hence here we redescribe this species based on specimens collected from the coasts of Kozhikode district of Kerala and designate a neotype for the taxon. Cnemaspis littoralis is distinguished from all other species of Indian Cnemaspis by its overall slender form; few scattered, small, spine like tubercles on flanks; dorsal scales homogeneous; enlarged hexagonal subcaudals and large number of femoral pores (15-18) in males. We also provide observations on the natural history, reproduction and interactions of this species with invertebrates.
We describe a new spotted species of ground-dwelling gecko of the genus Cyrtodactylus (Geckoella) from coastal Kerala, southwestern India, by using an integrative taxonomic approach. The new species is a member of the C. collegalensis species complex, with 10.0–13.5% uncorrected mitochondrial sequence divergence from the other six members of the C. collegalensis complex. The new species is also recognized in tree-based delimitation methods and can be morphologically diagnosed by a spotted dorsal pattern of four to six pairs of spots (occasionally fused into figure 8–shaped markings) from the banded species C. speciosus, C. rishivalleyensis, and C. yakhuna and from the spotted C. collegalensis, C. srilekhae, and C. varadgirii by the presence of a few scattered enlarged dorsal scales. This is the only Indian member of the C. collegalensis complex with a relatively broad distribution at low elevations, other than C. varadgirii from western India (distributed in Maharashtra, southern Gujarat, and western Madhya Pradesh). The sister species to the new species is the Sri Lankan C. yakhuna, which is a banded form from low elevations. The new species is the second gecko to have been described from Chengodumala and endemic to northern and central Kerala, highlighting the importance of this area, which is under increasing anthropogenic pressure. We also provide notes on the dorsal pholidosis of C. rishivalleyensis, which was overlooked in its original description.
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