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Dasia johnsinghi HARIKRISHNAN, VASUDEVAN, DE SILVA, DEEPAK, KAR, NANIWADEKAR, LALREMRUATA, PRASOONA & AGGARWAL, 2012

IUCN Red List - Dasia johnsinghi - Data Deficient, DD

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Higher TaxaScincidae, Mabuyinae (Mabuyini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Barred tree skink 
SynonymDasia johnsinghi HARIKRISHNAN, VASUDEVAN, DE SILVA, DEEPAK, KAR, NANIWADEKAR, LALREMRUATA, PRASOONA & AGGARWAL 2012 
DistributionIndia (Tamil Nadu)

Type locality: Servalar, Kani Kudi (latitude N 8.65354°, longitude E 77.31387°; WGS 84 datum) in a riverine forest habitat, Mundanthurai plateau, Tamil Nadu, India.  
Reproductionoviparous (phylogenetic imputation, fide Zimin et al. 2022) 
TypesHolotype: ZSI (ZSIC) 25946, adult male, collected on January 25, 2005 by the second author (KV). Paratype. BNHS = BNHM 1391 Collected from Kalakkad-Mundanthurai Tiger Reserve in the riverine forest of Tamaraparani River in Mundanthurai, in the southern Western Ghats, Tamil Nadu, India. The specimen was col- lected on August 18, 1984 by Justus Joshua and deposited by A. J. T. Johnsingh. 
DiagnosisDiagnosis: The specimens are placed in the genus Dasia Gray, 1839 on account of possession of the following characters: palatal notch not extending forwards to between the front of the eyes; eyelids well developed; lower eyelid scaly; nostril within the nasal; supranasals present; prefrontals, frontoparietals and interparietal distinct; ear opening small and tympanum sunk.
The new species is characterized by the following combination of characters: second pair of genials widely separated from each other; a single large anterior temporal in contact with supralabials and parietal; vertical slit- like ear opening with a projecting flap-like scale on its anterior inner border; 17 or 18 subdigital lamellae under fourth toe; scales on posterior dorsal body strongly keeled; body colour greenish brown with seven or eight broken, narrow, black cross-bands, each of which is one scale wide and spotted with white; no cross-bands on the neck which has two dorsal and two lateral black stripes; dorsal stripes start on the frontal shield and extend backward up to 13th vertebral scale; lateral stripes starting on the posterior part of anterior loreal and extend backward to the same level as the dorsal stripes [HARIKRISHNAN et al. 2012]. 
CommentAbundance: only known from its original description (Meiri et al. 2017). 
References
  • Al, Erwin 2013. Book review: M. Dorcas & John D. Willson, Invasive pythons in the United States. Ecology of an introduced predator. Litteratura Serpentium 33 (3): 169-174 - get paper here
  • CHANDRAMOULI, S. R. & A. A. THASUN AMARASINGHE 2015. On some recent taxonomic advancement and the resultant problems in the arboreal skink genus Dasia Gray, 1839 (Reptilia: Scincidae). Zootaxa 3914 (4): 495–500 - get paper here
  • HARIKRISHNAN, S.; KARTHIKEYAN VASUDEVAN, ANSLEM DE SILVA, V. DEEPAK, NILADRI BHUSAN KAR, ROHIT NANIWADEKAR, ALBERT LALREMRUATA, K. REBEKAH PRASOONA & RAMESH K AGGARWAL 2012. Phylogeography of Dasia Gray, 1830 (Reptilia: Scincidae), with the description of a new species from southern India. Zootaxa 3233: 37–51
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions 24 (2): 262-273 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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