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DOI: http://dx.doi.org/10.11646/zootaxa.4438.2.6

A new skink of the genus Sphenomorphus Fitzinger, 1843 (Squamata: Scincidae) from Hon Ba Nature Reserve, southern Vietnam

SANG NGOC NGUYEN, LUAN THANH NGUYEN, VU DANG HOANG NGUYEN, NIKOLAI L. ORLOV, ROBERT W. MURPHY

Abstract


A new forest skink of the genus Sphenomorphus Fitzinger, 1843 is described from Khanh Hoa Province, southern Vietnam based on morphological characters of four specimens and a fragment of 653 nucleotides of the gene COI. Sphenomorphus yersini sp. nov. is characterized by the following morphological characters: medium size in adults (snout-vent length up to 55 mm); tail length/snout-vent length ratio 1.81; toes reach to fingers when limbs adpressed; midbody scale rows 32–34, smooth; paravertebral scales 61–69; ventral scale rows 58–67; subcaudal scales 112; supraoculars four, rarely five; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk; smooth lamellae beneath finger and toe IV 10–12 and 18–20 respectively; a pair of enlarged precloacal scales; hemipenis deeply forked and asymmetrical with two differently sized smooth lobes. The new species differs from its most similar congener, Sphenomorphus buenloicus Darevsky & Nguyen, 1983, by 16.4–16.7% uncorrected p-distance in COI sequences.

 


Keywords


Reptilia, COI gene, forest skink, Sphenomorphus buenloicus, Sphenomorphus yersini, asymmetrical hemipenis

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ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand
A founding journal of Biotaxa