A new species ofScincella(Squamata: Scincidae) from Vietnam

Abstract

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A review of the genus Sphenomorphus Fitzinger, 1843 (Squamata: Scincidae) in southern Vietnam, with additional data on S. sheai and S. tridigitus

“…In Vietnam, Bain et al 15 recorded two specimens (IEBR 73 & 74) from Ngoc Linh, Quang Nam Province that agreed with the redescription of Greer et al 13 . These samples have a frontonasal, two widely separated prefrontals, fusion of nasal and first "infralabial" (it should be "supralabial") scales, and 18 and 20 mid-body scale rows 16 . Because the holotype was in a poor state of preservation having been found dead on a road 13 and the additional specimens collected out of the type locality do not fully agree with the original description, more specimens from Bach Ma (type locality) are necessary to clarify the status of this skink.…”

柬埔寨发现滑蜥属一新种（爬行纲：石龙子科）

“…Of these, the smooth skink genus Scincella Mittleman, 1950 currently contains 34 species with fragmented distribution, from the North American continent (five species) to Japan, Ryukyu Archipelago and Taiwan, China, Korean Peninsula, mainland China, and Southeast Asia (remaining species) ( Ouboter, 1986 ; Uetz et al, 2018 ). Scincella species are characterized by their small size, elongated body, short limbs, relatively long tail, smooth subcycloid scales (most species), small oblong head with transparent disc in a movable lower eyelid, absence of supranasals, pentadactyl hindlimbs, one row of basal subdigital lamellae (most species), median preanals overlapping lateral ones, four or more scales bordering the parietals between the upper secondary temporals, and lower secondary temporal overlapping the upper one (diagnosis follows Greer & Shea, 2003 ; Lim, 1998 ; Nguyen et al, 2010a , 2010b , 2010c ). Furthermore, the genus Scincella is differentiated from closely related Sphenomorphus Fitzinger by the presence of a transparent window in the lower eyelid as opposed to lower eyelid covered with polygonal scales in Sphenomorphus ( Greer, 1974 ; Nguyen et al, 2010a ).…”

“…The phylogenetic relationships of Scincella and many other Southeast Asian lygosomine skinks remain unresolved because they share many morphological similarities (e.g., Nguyen et al, 2010a , 2010b ). Based on examination of museum specimens, Ouboter ( 1986 ) undertook a major revision of Scincella Mittleman, 1950 , which resulted in numerous synonymies, some of which are discussed in the present paper (see Discussion).…”

New provincial records of skinks (Squamata: Scincidae) from northwestern Vietnam

“…Since then five new species have been described from Vietnam, viz. Scincella apraefrontalis Nguyen, Nguyen, Böhme & Ziegler, 2010 (Nguyen et al 2010b), Scincella darevskii Nguyen, Ananjeva, Orlov, Rybaltovsky & Böhme, 2010 (Nguyen et al 2010d), Tropidophorus boehmei Nguyen, Nguyen, Schmitz, Orlov & Ziegler, 2010 (Nguyen et al 2010e), Sphenomorphus tonkinensis Nguyen, Schmitz, Nguyen, Orlov, Böhme & Ziegler, 2011 (Nguyen et al 2011), Sphenomorphus sheai Nguyen, Nguyen, Van Devender, Bonkowski & Ziegler, 2013 (Nguyen et al 2013) and two species newly recorded for the country, namely Sphenomorphus mimicus Taylor, 1962 (Nguyen et al 2011), and Sphenomorphus incognitus (Thompson, 1912) (Nguyen et al 2012). …”

“…In Dien Bien Province, Do and Le (2009), Nguyen et al (2009), and Nguyen et al (2010d) recorded six species of skinks. During recent field work in northwestern Vietnam, a number of skinks was collected from Copia, Sop Cop and Muong Nhe nature reserves.…”