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Type: Article
Published: 2021-03-30
Page range: 361–376
Abstract views: 235
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A new species of Asian gracile skink (Scincidae: Lygosominae: Subdoluseps) from the rain-shadow belts of Nilgiri hills, Western Ghats, India

Chennai Snake Park, Rajbhavan post, Chennai 600 022, Tamil Nadu, India.
Centre for Ecological Sciences, Indian Institute of Sciences, Bangalore—560012, Karnataka, India.
School of Biological Sciences, National Institute of Science Education & Research, P.O. Bhimpur-Padanpur, District Khurda, Odisha—752050, India.
Bombay Natural History Society, Hornbill House, Opp. Lion Gate, S. B. S. Road, Fort, Mumbai—400001, India.
Centre for Ecological Sciences, Indian Institute of Sciences, Bangalore—560012, Karnataka, India.
School of Biological Sciences, National Institute of Science Education & Research, P.O. Bhimpur-Padanpur, District Khurda, Odisha—752050
Reptilia Dry zone Eastern Ghats genetics scalation Subdoluseps nilgiriensis sp. nov. Subdoluseps pruthi peninsular India

Abstract

We describe a new species of Asian gracile skink from the dry leeward slopes of the Nilgiri hills, Tamil Nadu state, India which forms a part of the eastern, rain shadow escarpment of the Western Ghats in peninsular India. The new species, Subdoluseps nilgiriensis sp. nov., is characterized by: slender, small-sized body (47–67 mm); sandy brown above, with each scale tipped with black; a thick black lateral band from snout to tail; a distinct white labial streak; dirty white venter, with throat having mild black striations; 28–29 midbody scale rows; 71–74 mid ventral scales; 66–69 paravertebral scales. The new species is described based on external morphological characters, genetic data and geographical isolation. Based on two mitochondrial DNA genes, we show that the new species shares a sister relationship with Subdoluseps pruthi (Sharma, 1977) which is found in parts of the Eastern Ghats in peninsular India. The discovery of this new population raises two novel scenarios. Firstly, it renders the genus Subdoluseps evolutionarily polyphyletic with respect to the Indian species included in this genus. Secondly, it falsifies the notion that S. pruthi group skinks are restricted to the Eastern Ghats. Our results further indicate that the dry zone of peninsular India has unrealized skink diversity that needs to be further explored.

 

References

  1. Aengals, R., Kumar, M.V.S., Palot, M.J. & Ganesh, S.R. (2018) A checklist of reptiles of India. Zoological Survey of India. Available from https://zsi.gov.in/checklist/Reptiles Version 3.0 (accessed 1 December 2020)

    Agarwal, I., Khandekar, A., Giri, V.B., Ramakrishnan, U. & Karanth, P. (2019) The hills are alive with geckos! A radiation of adozen species on sky islands across peninsular India (Squamata: Gekkonidae, Hemiphyllodactylus) with the description of three new species. Organisms Diversity & Evolution, 19 (2), 341–361.

    https://doi.org/10.1007/s13127-019-00392-5

    Agarwal, I. & Ramakrishnan, U. (2017) A phylogeny of open-habitat lizards (Squamata: Lacertidae: Ophisops) supports the antiquity of Indian grassy biomes. Journal of Biogeography, 44 (9), 2021–2032.

    https://doi.org/10.1111/jbi.12999

    Balasubramanian, P., Sebastian, M.K., Arun, P.R., Pramod, P., Jayapal, R. & Kumara, H.N. (2017) Glimpses of SACON Campus Biodiversity. Sálim Ali Centre for Ornithology and Natural History, Tamil Nadu, 81 pp.

    Boulenger, G.A. (1890) The Fauna of British India, including Ceylon and Burma—fReptilia and Batrachia. Taylor & Francis, London, 541 pp.

    https://doi.org/10.5962/bhl.title.57017

    Chaitanya, R., Giri, V.B., Deepak, V., Datta-Roy, A., Murthy, B.H.C.K. & Karanth, P. (2019) Diversification in the mountains: a generic reappraisal of the Western Ghats endemic gecko genus Dravidogecko Smith, 1933 (Squamata: Gekkonidae) with descriptions of six new species. Zootaxa, 4688 (1), 1–56.

    https://doi.org/10.11646/zootaxa.4688.1.1

    Champion, H.G. & Seth, S.K. (1968) A revised survey of the forest types in India. Government of India Press, New Delhi, xxvii + 404 pp., 103 pls.

    Datta-Roy, A., Singh, M., Srinivasulu, C. & Karanth, K.P. (2012) Phylogeny of the Asian Eutropis (Squamata: Scincidae) reveals an ‘into India’ endemic Indian radiation. Molecular Phylogenetics and Evolution, 63 (3), 817–824.

    https://doi.org/10.1016/j.ympev.2012.02.022

    Datta-Roy, A., Singh, M. & Karanth, K.P. (2014) Phylogeny of endemic skinks of the genus Lygosoma (Squamata: Scincidae) from India suggests an in situ radiation. Journal of Genetics, 93 (1), 163–167.

    https://doi.org/10.1007/s12041-014-0321-z

    Deepak, V. & Karanth, K.P. (2018) Aridification driven diversification of fan-throated lizards from the Indian subcontinent. Molecular phylogenetics and evolution, 120, 53–62.

    https://doi.org/10.1016/j.ympev.2017.11.016

    de Quiroz, K. (1998) The general lineage concept of species, species criteria and the process of speciation: a conceptual unification and terminological recommendations. In: Howard, D.J. & Berlocher, S.H. (Eds.), Endless forms. Oxford University press, New York, pp. 17–29.

    Edgar, R.C. (2004) MUSCLE: multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Research, 32 (5), 1792 ̶ 1797.

    https://doi.org/10.1093/nar/gkh340

    Freitas, E.S., Datta-Roy, A., Karanth, P., Grismer, L.L. & Siler, C.D. (2019) Multilocus phylogeny and a new classification for African, Asian and Indian supple and writhing skinks (Scincidae: Lygosominae). Zoological Journal of the Linnaean Society, 186 (4), 1067–1096.

    https://doi.org/10.1093/zoolinnean/zlz001

    Ganesh, S.R. & Arumugam, M. (2016) Species richness of montane herpetofauna of Southern Eastern Ghats, India: a historical resume and a descriptive checklist. Russian Journal of Herpetology, 23 (1), 7–24.

    Ganesh, S.R. & Aengals, R. (2018) On further specimens of the poorly-known Pruthi’s skink Lygosoma pruthi (Sharma, 1977) with an expanded description. Asian Journal of Conservation Biology, 7 (2), 128–132.

    Ganesh, S.R. (2017) On the poorly-known White-spotted Skink Lygosoma albopunctatum (Gray, 1846) (Reptilia: Scincidae) with further topotypical records and notes on the type locality. Journal of Threatened Taxa, 9 (9), 10662–10668.

    https://doi.org/10.11609/jott.3376.9.9.10662–10668

    Ganesh, S.R., Kalaimani, A., Karthik,P., Baskaran, N., Nagarajan R. & Chandramouli, S.R. (2018) Herpetofauna of Southern Eastern Ghats, India—II; from Western Ghats to Coromandel Coast. Asian Journal of Conservation Biology, 7 (1), 28–45.

    Greer, A.E. (2007) The biology and evolution of scincid lizards. Available from: https://www.academia.edu/35305801/The_Biology_and_Evolution_of_Scincid_Lizards.doc (accessed 11 December 2020)

    Grismer, L.L., Dzukafly, Z.A., Muin, M.A., Quah, E.S., Karin, B.R., Anuar, S.H. & Freitas, E.S. (2019) A new skink of the genus Subdoluseps (Hardwicke & Gray, 1828) from Peninsular Malaysia. Zootaxa, 4609 (2), 358–372.

    https://doi.org/10.11646/zootaxa.4609.2.10

    Gunnell, Y. (1997) Topography, palaeosurfaces and denudation over the Karnataka Uplands, southern India. Geological Society, London, Special Publications, 120 (1), 249–267.

    https://doi.org/10.1144/gsl.sp.1997.120.01.16

    Gupta, B. K. (1998). Notes on occurrence and growth in Geckoella collagalensis (Beddome, 1870). Hamadryad, 23, 77–77.

    Harikrishnan, S., Vasudevan, K., De Silva, A., Deepak, V., Kar, N.B., Naniwadekar, R., Lalremruata, A., Prasoona, K.R. & Aggarwal, R.K. (2012) Phylogeography of Dasia Gray, 1830 (Reptilia: Scincidae), with the description of a new species from southern India. Zootaxa, 3233(1), 37–51.

    Javed, S.M.M., Seetharamaraju, M., Rao, K.T., Tampal, F. & Srinivasulu, C. (2010) Distribution of Lygosoma guentheri (Peter, 1879) (Reptilia: Scincidae) in Andhra Pradesh, India. Journal of Threatened Taxa, 837–840.

    https://doi.org/10.11609/jott.o2092.837-40

    Jins, V.J., Sampaio, F.L. & Gower, D.J. (2018) A new species of Uropeltis Cuvier, 1829 (Serpentes: Uropeltidae) from the Anaikatty Hills of the Western Ghats of India. Zootaxa, 4415 (3), 401–422.

    https://doi.org/10.11646/zootaxa.4415.3.1

    Karanth, K.P. (2003) Evolution of disjunct distributions among wet-zone species of the Indian subcontinent: testing various hypotheses using a phylogenetic approach. Current Science, 85 (9), 1276–1283.

    Lanfear, R., Calcott, B., Ho, S.Y. & Guindon, S. (2012) PartitionFinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Molecular biology and evolution, 29 (6), 1695–1701.

    https://doi.org/10.1093/molbev/mss020

    Leaché, A.D. & Reeder, T.W. (2002) Molecular systematics of the Eastern Fence Lizard (Sceloporus undulatus): a comparison of parsimony, likelihood, and Bayesian approaches. Systematic Biology, 51, 44–68.

    https://doi.org/10.1080/106351502753475871

    Mani, M.S. (1974) Ecology and biogeography in India. Dr. W. W. Junk, Publishers, The Hague 773 pp.

    https://doi.org/10.1007/978-94-010-2331-3

    Mukherjee, D., Bhupathy, S. & Nixon, A.M.A. (2005) A new species of day gecko (Squamata, Gekkonidae, Cnemaspis) from the Anaikatti Hills, Western Ghats, Tamil Nadu, India. Current Science, 89(8), 1326–1328.

    Mukherjee, D. & Bhupathy, S. (2007) A new species of wolf snake (Serpentes: Colubridae: Lycodon) from Anaikatti Hills, Western Ghats, Tamil Nadu, India. Russian Journal of Herpetology, 14 (1), 21–26.

    Natarajan, D., Britto, S.J., Balaguru, B., Nagamurugan, N., Soosairaj, S. & Arockiasamy, D.I. (2004) Identification of conservation priority sites using remote sensing and GIS—A case study from Chitteri hills, Eastern Ghats, Tamil Nadu. Current science, 86, 1316–1323.

    Palumbi, S. (1991) The simple fool’s guide to PCR. Department of Zoology and Kewalo Marine Laboratory, Honolulu, 246 pp.

    Ramachandran, A., Radhapriya, P., Jayakumar, S., Dhanya, P. & Geetha, R. (2016) Critical analysis of forest degradation in the Southern Eastern Ghats of India: Comparison of satellite imagery and soil quality index. PloS one, 11 (1), e0147541.

    https://doi.org/10.1371/journal.pone.0147541

    Rambaut, A. & Drummond, A.J. (2013) TreeAnnotator. Version 1.8.0. MCMC output analysis. Available from: http://beast.bio.ed.ac.uk/TreeAnnotator (accessed 15 April 2020)

    Rathinasabapathy, B. & Gupta, B.K. (1997) A note on reproduction in Calotes calotes at Anaikatty, Western Ghats. Hamadryad, 22 (2), 128.

    Rodgers, W.A. & Panwar, S.H. (1988) Biogeographical classification of India. New Forest Publications, Dehradun, 341 pp.

    Ronquist, F., Teslenko, M., Mark, P.V.D., Ayres, D.L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M.A. & Huelsenbeck, J.P. (2012) MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology, 61 (3), 539–542.

    https://doi.org/10.1093/sysbio/sys029

    Seetharamaraju, M., Sreekar, R., Srinivasulu, C., Srinivasulu, B., Kaur, H. & Venkateshwarlu, P. (2009) Rediscovery of Vosmer’s Writhing Skink Lygosoma vosmaerii (Gray, 1839) (Reptilia: Scincidae) with a note on its taxonomy. Journal of Threatened Taxa, 1 (No 12), 624–626.

    https://doi.org/10.11609/jott.o2160.624-6

    Sharma, R.C. (1977) A new lizard of the genus Riopa Gray (Scincidae) from Tamil Nadu, India. Records Zoological Survey of India, 73 (1–4), 41–42.

    Shimodaira, H. (2002). An approximately unbiased test of phylogenetic tree selection. Systematic Biology, 51 (3), 492–508.

    https://doi.org/10.1080/10635150290069913

    Silvestro, D. & Michalak, I. (2012) Raxml GUI: a graphical front–end for RAxML—Springer. Organisms Diversity & Evolution, 12, 335–337.

    https://doi.org/10.1007/s13127-011-0056-0

    Smith, M.A. (1935) Fauna of British India, including Ceylon and Burma; Vol-II – Sauria. Taylor & Francis, London, xiii + 440pp.

    Stamatakis, A. (2006) RAxML-VI-HPC: maximum likelihood–based phylogenetic analyses with thousands of taxa and mixed models. Bioinformatics, 22 (21), 2688–2690.

    https://doi.org/10.1093/bioinformatics/btl446

    Swofford, D.L. (2002) PAUP: phylogenetic analysis using parsimony. Version 4.0 b10. [program]

    Tamura, K., Peterson, D., Peterson, N., Stecher, G., Nei, M. & Kumar, S. (2011) MEGA5: Molecular Evolutionary Genetics Analysis using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony Methods. Molecular Biology and Evolution, 28, 2731–2739.

    https://doi.org/10.1093/molbev/msr121

    Tripathi, P., Behera, M.D. & Roy, P.S. (2019) Spatial heterogeneity of climate explains plant richness distribution at the regional scale in India. PloS one, 14 (6), e0218322.

    https://doi.org/10.1371/journal.pone.0218322

    Valdiya, K.S. (2015) The making of India: geodynamic evolution. Springer International publishing, Cham, XXXVI + 924 pp.

    Vijayakumar, S.P., Ragavendran, A. & Choudhury, B.C. (2006) Herpetofaunal assemblage in a tropical dry forest mosaic of Western Ghats, India: Preliminary analysis of species composition and abundance during the dry season. Hamadryad, 30 (1/2), 40–53.

    Venugopal, P.D. (2010) An updated and annotated list of Indian lizards (Reptilia: Sauria) based on a review of distribution records and checklists of Indian reptiles. Journal of Threatened Taxa, 2 (3), 725–738.

    https://doi.org/10.11609/jott.o2083.725-38

    Vyas, R. (2009) Notes on the distribution and natural history of an endemic skink from India: Lygosoma lineata (Gray, 1839). Sauria, 31(1), 45–50.

    Vyas, R. (2010) Record of Lygosoma albopunctata Gray, 1846 from Vansda forest and comments on its distribution in Gujarat state. Reptile Rap, 10, 4–5.