Lygosoma schneideri Werner 1900
Creators: name: Grismer, L. Lee
name: Quah, Evan S. H.
name: Duzulkafly, Zaharil
name: Yambun, Paul
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Lygosoma
Lygosoma schneideri

description: Lygosoma schneideri Werner, 1900
Sumatran Supple Skink
Figs. 4 & 5
Lygosoma bampfyldii Boulenger, 1912:93; Smith, 1930:36
Lygosoma bampfyldei de Rooji, 1915:263; Greer, 1977:915; Welch et al., 1990:83; Das & Yaakob, 2007:78; Das, 2010:238; Grismer, 2011:613.
Riopa bampfyldei Smith 1937:228; Manthey & Grossmann 1997:275; Chan-ard et al., 1999:27.
Mochlus bampfyledei Mittleman, 1952:22
Riopa bampfyldii Denzer & Manthey, 1991:317
Holotype. Adult male (BM 4743) from “Indragiri, Djapura”, Sumatra, Indonesia and accessioned into the Naturhistorischen Museum Basel by G. Schneider on 1 January 1900.
Diagnosis. Lygosoma schneideri can be differentiated from all other Lygosoma by having the combination of a relatively large (SVL = 129 mm) robust body (PEC/SVL = 0.15); seven supralabials and infralabials; midline contact of the supranasals; prefrontals not in contact; frontoparietal contacting three supraoculars; large postinterparietal present; eight superciliaries; two postsuboculars, the first being small; one or two primary and three secondary and tertiary temporals; eight nuchal scales; a deep postnasal groove extending from the nasal scale to below the anterior portion of the eye and lying below the anterior loreals and lower preocular and above the second and third supralabials; scaly lower eyelid, no window; 45 midbody scale rows; 95 paravertebral scale rows; 98 ventral scale rows; 34 caudal scale rows at the tenth subcaudal; eight large precloacal scales; smooth to weakly keeled subdigital finger lamellae, 10 lamellae on third finger; keeled subdigital toe lamellae, 16 lamellae on fourth toe; low, round, small, palmar scales numbering seven across the base of the palm; head pattern consisting of a dark, continuous frontal and occipital band separated by a yellowish band; dark occipital band not confluent with lighter color of dorsum and tail. These characters are scored across all species in the L. bampfyldei group in Table 2.
Distribution. Lygosoma schneideri is known only from the type locality. Das (2010) reports this species from “north-western Sumatra (Indrajiri, Riau Province)” however the type locality listed by Werner (1910) “Indragiri, Djapura” is in southeastern Sumatra (Fig. 1).
Remarks. Boulenger (1912) placed Lygosoma schneideri in the synonymy of L. bampfyldei in his redescription of the latter. Our analyses indicate that L. schneideri is considerably different from L. bampfyldei in having two vs. three suboculars, a postparietal scale (Fig. 2), 45 vs. 36–40 midbody scale rows, 95 vs. 82–85 paravertebral scale rows, 34 vs. 28–30 scale rows around the tail at the 10th subcaudal, and a significantly (t = -6, p = 0.004) more robust (PEC/SVL = 0.15) vs. a slender (PEC/SVL = 0.12–0.13) body (Fig. 4).
description: Published as part of Grismer, L. Lee, Quah, Evan S. H., Duzulkafly, Zaharil & Yambun, Paul, 2018, On the taxonomy of Lygosoma bampfyldei Bartlett, 1895 (Squamata: Scincidae) with descriptions of new species from Borneo and Peninsular Malaysia and the resurrection of Lygosoma schneideri Werner, 1900, pp. 528-550 in Zootaxa 4438 (3) on pages 536-537, DOI: 10.11646/zootaxa.4438.3.6, http://zenodo.org/record/1298204