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A NEW SPECIES OF PITVIPER (SERPENTES: VIPERIDAE: Trimeresurus LACEPEDE, 1804) FROM WEST KAMENG DISTRICT, ARUNACHAL PRADESH, INDIA

Captain, Ashok and Deepak, V and Pandit, Rohan and Bhatt, Bharat and Athreya, Ramana (2019) A NEW SPECIES OF PITVIPER (SERPENTES: VIPERIDAE: Trimeresurus LACEPEDE, 1804) FROM WEST KAMENG DISTRICT, ARUNACHAL PRADESH, INDIA. In: RUSSIAN JOURNAL OF HERPETOLOGY, 26 (2). pp. 111-122.

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Official URL: https://doi.org/10.30906/1026-2296-2019-26-2-111-1...

Abstract

A new species of pitviper, Trimeresurus arunachalensis sp. nov., is described based on a single specimen. It differs from all known congeners by the following combination of characters - 19:17:15 acutely keeled dorsal scale rows (except first row - keeled or smooth); overall reddish-brown coloration; white dorsolateral stripe on outer posterior edges of ventrals and sometimes first dorsal scale row; 7 supralabials; 6 - 7 scales between supraoculars; 145 ventrals; 51 paired subcaudals (excluding the terminal scale); single anal; a sharply defined canthus rostralis with the margin overhanging the loreal region; a distinctly concave rostral scale with the upper edge projecting well beyond its lower margin; an unforked, attenuate hemipenis that extends to the 8th subcaudal scale. and has no visible spines. DNA phylogenetic analysis indicates that the new species is distinct from congeners and nested well within the Trimeresurus Glade. The closest relative based on available DNA data is T. tibetanus. The new species is presently known from a single locality - Ramda, West Kameng, Arunachal Pradesh, northeastern India.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to FOLIUM PUBL CO
Keywords: Crotalinae; snake; taxonomy; Trimeresurus arunachalensis sp. nov.; viper
Department/Centre: Division of Biological Sciences > Centre for Ecological Sciences
Depositing User: LIS Interns
Date Deposited: 24 May 2019 10:54
Last Modified: 24 May 2019 10:54
URI: http://eprints.iisc.ac.in/id/eprint/62751

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