A new species of snail-eating snakes of the genus Pareas Wagler, 1830 (Reptilia: Serpentes) from eastern Himalayas, India
Abstract
A new species of snail-eating snakes of the genus Pareas Wagler, 1830 is described from the eastern Himalayas. The species Pareas kaduri sp. nov. differs from all known species of the genus in bearing the following suite of characters: SVL 455–550 mm, TaL/TL 0.184–0.207, brown dorsum with black transverse bands throughout the body, 15 dorsal scale rows throughout the body and mid-dorsal vertebral scale rows enlarged, 8 rows keeled in males, loreal not touching orbit, ventrals 160–183, subcaudals 65–70 in males, 52 in one female specimen, hemipenis short, unilobed and 6–7 maxillary teeth. Molecular data for mitochondrial 16S rRNA and cytochrome b genes further attest the distinctness of the new species, which was recovered as a member of the Pareas hamptoni clade. Our work brings the total number of species recognized within the genus Pareas to 20.
References
Anonymous 2015. The Deep Scaly Project, 2015, “Pareas hamptoni”, Digital Morpholog. Available from http://digimorph.org/specimens/Pareas_hamptoni/ [accessed 26 Nov. 2019].
Bhosale H.S., Gowande G. & Mirza Z.A. 2019. New species of fossorial natricid snakes of the genus Trachischium Günther, 1858 (Serpentes: Natricidae) from the Himalayas of northeast India. Comptes Rendus Biologies 342: 323–329. https://doi.org/10.1016/j.crvi.2019.10.003
Deepak V., Ruane S. & Gower D.J. 2018. A new subfamily of fossorial colubroid snakes from the Western Ghats of peninsular India. Journal of Natural History 52: 2919–2934. https://doi.org/10.1080/00222933.2018.1557756
Dowling H. 1951. A proposed standard system of counting ventrals in snakes. British Journal of Herpetology 11: 97–99.
Heatwole H. 2009. Biology of the Reptilia. Volume 20, Morphology H, The Skull of Lepidosauria. Carl Gans, Abbot S. Gaunt, and Kraig Adler, editors. Integrative and Comparative Biology 49: 610–611. https://doi.org/10.1093/icb/icp063
Hoso M., Asami T. & Hori M. 2007. Right-handed snakes: convergent evolution of asymmetry for functional specialization. Biology Letters 3: 169–172. https://doi.org/10.1098/rsbl.2006.0600
Kumar S., Stecher G., Li M., Knyaz C. & Tamura K. 2018. MEGA X: Molecular Evolutionary Genetics Analysis across computing platforms. Molecular Biology and Evolution 35: 1547–1549. https://doi.org/10.1093/molbev/msy096
Lalbiakzuala & Lalremsanga H.T. 2019. Pareas margaritophorus, a new country report for India. Herpetological Review 50: 332.
Lanfear R., Calcott B., Ho S. & Guindon S. 2012. PartitionFinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Molecular Biology and Evolution 29: 1695–1701. https://doi.org/10.1093/molbev/mss020
Leary S., Underwood W., Anthony R. & Cartner S. 2013. AVMA Guidelines for the Euthanasia of Animals: 2013 edition. American Veterinary Medical Association, Schaumburg, IL, USA.
Mirza Z.A. & Patel H. 2018. Back from the dead! Resurrection and revalidation of the Indian endemic snake genus Wallophis Werner, 1929 (Squamata: Colubridae) insights from molecular data. Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis 29: 331–334. https://doi.org/10.1080/24701394.2016.1278536
Mirza Z.A., Vyas R., Patel H., Maheta J. & Sanap R.V. 2016. A new Miocene-divergent lineage of Old World racer snake from India. PloS ONE 11 (3): e0148380. https://doi.org/10.1371/journal.pone.0148380
Mirza Z.A., Bhosale H.S., Phansalkar P.U., Sawant M., Gowande G.G. & Patel H. 2020. A new species of green pit vipers of the genus Trimeresurus Lacépède, 1804 (Reptilia: Serpentes: Viperidae) from western Arunachal Pradesh, India. Zoosystematics and Evolution 96: 123–138. https://doi.org/10.3897/zse.96.48431
Pyron R.A., Kandambi H.K.D., Hendry C.R., Pushpamal V., Burbrink F.T. & Somaweera R. 2013. Genus-level phylogeny of snakes reveals the origins of species richness in Sri Lanka. Molecular Phylogenetics and Evolution 66: 969–978. https://doi.org/10.1016/j.ympev.2012.12.004
Ronquist F. & Huelsenbeck J. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19: 1572–1574. https://doi.org/10.1093/bioinformatics/btg180
Thompson J.D., Gibson T.J. & Higgins D.G. 2002. Multiple sequence alignment using ClustalW and ClustalX. Current Protocols in Bioinformatics 0: 2.3.1–2.3.22. https://doi.org/10.1002/0471250953.bi0203s00
Trifinopoulos J., Nguyen L., von Haeseler A. & Minh B.Q. 2016. W-IQ-TREE: a fast online phylogenetic tool for maximum likelihood analysis. Nucleic Acids Research 44: W232–W235. https://doi.org/10.1093/nar/gkw256
Vitt L.J. & Caldwell J.P. 2014. Chapter 2 - Anatomy of Amphibians and Reptiles. In: Vitt L.J. & Caldwell J.P. (eds) Herpetology: An Introductory Biology of Amphibians and Reptiles: 35–82. Academic Press, San Diego. https://doi.org/10.1016/B978-0-12-386919-7.00002-2
Vogel G. 2015. A new montane species of the genus Pareas Wagler, 1830 (Squamata: Pareatidae) from Northern Myanmar. TAPROBANICA: The Journal of Asian Biodiversity 7: 1–7. https://doi.org/10.4038/tapro.v7i1.7501
Vogel G., Nguyen T. van, Lalremsanga H.T., Biakzuala L., Hrima V. & Poyarkov N.A. 2020. Taxonomic reassessment of the Pareas margaritiferus-macularius species complex (Squamata, Pareidae). Vertebrate Zoology 70: 547–569. https://doi.org/10.26049/VZ70-4-2020-02
Wallach V., Williams K.L. & Boundy J. 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor & Francis Group, London. https://doi.org/10.1201/b16901
Wang P., Che J., Liu Q., Li K., Jin J.Q., Jiang K., Shi L. & Guo P. 2020. A revised taxonomy of Asian snail-eating snakes Pareas (Squamata, Pareidae): evidence from morphological comparison and molecular phylogeny. ZooKeys 939: 45–64. https://doi.org/10.3897/zookeys.939.49309.
Whitaker R. & Captain A. 2004. Snakes of India. The Field Guide. Draco Books, Chennai.
You C.W., Poyarkov N.A. & Lin S.M. 2015. Diversity of the snail-eating snakes Pareas (Serpentes, Pareatidae) from Taiwan. Zoologica Scripta 44: 349–361. https://doi.org/10.1111/zsc.12111
Zaher H., Murphy R.W., Arredondo J.C., Graboski R., Machado-Filho P.R., Mahlow K., Montingelli G.G., Quadros A.B., Orlov N.L., Wilkinson M., Zhang Y.P. & Grazziotin F.G. 2019. Large-scale molecular phylogeny, morphology, divergence-time estimation, and the fossil record of advanced caenophidian snakes (Squamata: Serpentes). PLoS ONE 14 (5): e0216148. https://doi.org/10.1371/journal.pone.0216148
Copyright (c) 2020 Harshal Bhosale, Pushkar Phansalkar, Mandar Sawant, Gaurang Gowande, Harshil Patel, Zeeshan A. Mirza
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