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Scincella nigrofasciata NEANG, CHAN & POYARKOV, 2018

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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymScincella nigrofasciata NEANG, CHAN & POYARKOV 2018 
DistributionCambodia

Type locality: 12° 19’ 12.3’’ N, 107° 04’ 20.8’’ E , 508 m a.s.l in Keo Seima Wildlife Sanctuary, O’Raing District, Mondulkiri Province, Cambodia.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: CBC 02546, adult female, collected by Thy Neang on 25 September 2016. Paratypes: CBC 02545, adult male, CBC02840, adult female, and CBC02841–42, two subadults, collected by Thy Neang at the same date and locality as given for the holotype. 
DiagnosisDiagnosis: The new species was assigned to the genus Scincella Mittleman, 1950 as it shows morphometric and meristic characters matching the diagnosis for this genus. Scincella nigrofasciata sp. nov. can be diagnosed from other congeners by the following combination of morphological attributes: (1) slender and medium-sized, SVL 40.0–52.6 mm; (2) tail relatively long, TaL/SVL (1.25–1.94); (3) FIL/SVL 0.20–0.22; (4) HIL/SVL 0.30–0.33; (5) forelimbs and hind limbs either slightly overlapping (0.4–2.2 mm) or slightly separated (1.9–2.3 mm) when adpressed to body toward each other; (6) infralabials 6; (7) supraciliaries 7–8; (8) prefrontals in broad contact; (9) primary temporals 2; (10) nuchal scales weakly enlarged; (11) external ear opening without lobules; (12) dorsal scales smooth: MBSR 32–33, PRVSR 69–74, VS 65–69, DBR 8; (13) SDLT4 15–17; (14) coloration pattern with dorsum dark brown/greyish-brown in life with 5–7 regular discontinuous dorsal dark stripes (formed by series of dark dots or elongated black spots), including paravertebral stripes, wide black dorsolateral stripes, 2–3 scale rows in width, starting from posterior corner of eye and continuing to lateral side of tail, extending 52%–86% of total tail length; and (15) hemipenis bifurcating about 63% of its total length to base.


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CommentHabitat: semi-deciduous lowland forests at elevations. The holotype female , paratype male, and subadult were spotted moving near rotten logs, female was moving along the ground on the forest floor, and subadult was found under a rotten log. 
EtymologyNamed after the Latin words “niger” for “black” and “fascia” for “band”, in reference to the wide black dorsolateral stripes typical for this species. 
References
  • Kwet, A. 2019. Liste der im Jahr 2018 neu beschriebenen Reptilien. Elaphe 2019 (3): 52-72
  • Neang, Thy; Somaly Chan, Nikolay A. Poyarkov, Jr.. 2018. A new species of smooth skink (Squamata: Scincidae: Scincella) from Cambodia. Zoological Research, DOI: 10.24272/j.issn.2095-8137.2018.008 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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