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Scincella auranticaudata NGUYEN, NGUYEN, LE, NGUYEN, PHAN, VO, MURPHY & CHE, 2025

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Orange-tailed Ground Skink
Vietnamese: Thằn lằn cổ đuôi cam
Local Vietnamese: Rắn mối đuôi cam 
SynonymScincella auranticaudata NGUYEN, NGUYEN, LE, NGUYEN, PHAN, VO, MURPHY & CHE 2025: 279 
DistributionVietnam (Binh Thuan)

Type locality: Binh Thuan Province, Ta Kou Mountain; 10°49′30″ N, 107°53′46″ E; 286 m a.s.l.  
Reproduction 
TypesHolotype: ITBCZ 7700, adult male, 3 Jun. 2020; Sang N. Nguyen and Vu D.H. Nguyen leg.; GenBank: PV022551; ; ITBCZ. Paratypes: VIETNAM • 1 ♀, gravid; Binh Thuan Province, Ta Kou Mountain; 10°48′53″ N, 107°53′43″ E; 520 m a.s.l.; 2 Jun. 2020; Sang N. Nguyen leg.; GenBank: PV022548; ITBCZ 6527; ITBCZ • 1 ♂, adult; Binh Thuan Province, Ta Kou Mountain; 10°48′52″ N, 107°53′42″ E; 504 m a.s.l; 30 May 2020; Sang N. Nguyen and Vu D.H. Nguyen leg.; GenBank: PV022549; ITBCZ 7620; ITBCZ • 1 ♀, gravid; Binh Thuan Province, Ta Kou Mountain; 10°48′52″ N, 107°53′42″ E; 504 m a.s.l; 30 May 2020; Sang N. Nguyen and Vu D.H. Nguyen leg.; GenBank: PV022550; ITBCZ 7623. 
DiagnosisDiagnosis: Scincella auranticaudata sp. nov. is distinguished from all of its congeners by a combination of the following morphological characters: medium size in adults (SVL up to 62.1 mm); 34–36 smooth midbody scale rows; dorsal scales not enlarged, ½+8+½ rows on back; 67–74 paravertebrals; 65–69 ventral scale rows; 4 supraoculars; prefrontals separated from or just in contact with one another; 2 loreals; 7 supralabials, fifth below center of eye; 2 anterior and 2 posterior enlarged temporals; 1 pairs of nuchals; tympanum deeply sunk and oval; 10–13 smooth lamellae beneath finger IV and 17–20 beneath toe IV; 2 enlarged precloacals; hemipenis smooth, forked near the base with two long symmetrical lobes; dorsum with a vertebral line formed by large black spots. (NGUYEN et al. 2025)


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Comment 
EtymologyNamed after Latin ‘aurantiacus’ (meaning ‘orange-colored’) and ‘caudatus’ (meaning ‘tail’), referring to the orange coloration on the tail of the new species. 
References
  • Nguyen, S. N., Nguyen, L. T., Van Le, M., Nguyen, V. D. H., Phan, K. D., Vo, T. D. H., ... & Che, J. 2025. Two new skinks of the genus Scincella Mittleman, 1950 (Squamata: Scincidae) from southern Vietnam. European Journal of Taxonomy, 989, 266-288 - get paper here
 
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