Cnemaspis flavigaster Chan & Grismer, 2008

Grismer, Lee, Wood, Perry L., Anuar, Shahrul, Riyanto, Awal, Ahmad, Norhayati, Muin, Mohd A., Sumontha, Montri, Grismer, Jesse L., Onn, Chan Kin, Quah, Evan S. H. & Pauwels, Olivier S. A., 2014, Systematics and natural history of Southeast Asian Rock Geckos (genus Cnemaspis Strauch, 1887) with descriptions of eight new species from Malaysia, Thailand, and Indonesia, Zootaxa 3880 (1), pp. 1-147 : 60-61

publication ID 10.11646/zootaxa.3880.1.1

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Cnemaspis flavigaster Chan & Grismer, 2008


Cnemaspis flavigaster Chan & Grismer, 2008

Orange-bellied Rock Gecko

Fig. 29 View FIGURE 29

Cnemaspis affinis Boulenger 1912:39

Cnemaspis kumpoli Dring 1979:223

Holotype. HC 00282. Type locality: “the canopy walk trail at Forest Research Institute Malaysia ( FRIM), state of Selangor, Peninsular Malaysia (3°14’23.04”N, 101°37’59.80” E)” at 120 m in elevation. GoogleMaps

Diagnosis. Maximum SVL 50.1 mm; nine or ten supralabials; 8–10 infralabials; smooth ventral scales; seven or eight contiguous pore-bearing precloacal scales with round pores; 21–24 paravertebral tubercles; tubercles on flanks; tubercles absent from lateral caudal furrows; no ventrolateral caudal tubercles; lateral caudal row of tubercles present; caudal tubercles do not encircle tail; subcaudals smooth with no enlarged, median scale row; one or two postcloacal tubercles on each side of tail base; no enlarged femoral or subtibial scales; subtibials keeled; enlarged submetatarsal scales on first toe; 29–34 subdigital fourth toe lamellae; wide, black, oblique stripe in shoulder region; distinct black and white bands on tail; pectoral region, abdomen, ventral surface of hind limbs, and subcaudal region orange in males (Tables 6,7).

Color pattern ( Fig. 29 View FIGURE 29 ). Dorsal ground color brown to dark grey; sides of the head bearing yellow markings; three faint, postorbital stripes radiate from eye; three dark spots across the occiput anteriorly with another elliptical, medial spot posteriorly; paired, paravertebral spots on nape; dark, dorsolateral line extending from nape to forelimb insertion and onto brachium; paired, paravertebral, dorsal spots on body alternating with large, whitish blotches extending from shoulder to base of tail; another series of spots on flanks; flanks bear irregularly shaped, yellow blotches; dorsal surface of limbs bear irregularly shaped, dark and light markings; black and dull white bands nearly encircle tail; undersides of head and limbs mottled with fine, dark stippling; throat whitish; and chest, abdomen and underside of tail orange in males and beige in females. Coloration lightens considerably at night, highlighting the blotched dorsal pattern.

Distribution. Cnemaspis flavigaster is known only from the Forest Research Institute of Malaysia, Batu Caves, Selangor ( Chan & Grismer 2008), and is newly reported here from Ulu Gombak, Selangor ( Fig. 3 View FIGURE 3 ).

Natural history. Cnemaspis flavigaster is a scansorial species restricted to granite rocks or karst ( Flower 1899; Grismer & Chan 2008; Fig. 29 View FIGURE 29 ) in lowland, old secondary forest and is only occasionally seen on tree trunks or fallen logs but never on leafy vegetation ( Grismer 2011a). Grismer (2011a) noted that C. flavigaster is quite wary while abroad during the day on the shaded sides of rocks and deep within small alcoves. At night however, lizards venture farther out into open areas on the rocks and are more stationary. Grismer et al. (2010c) outlined a number of examples where sympatric species of Cnemaspis seem to be partitioning their habitat by having different activity periods, body sizes, substrate preferences or varying combinations of each. Inconsistent with these observations was finding C. flavigaster at Ulu Gombak in syntopy on granite boulders with C. peninsularis sp. nov., Cnemaspis peninsularis sp. nov., however, is a habitat generalist and its presence on other substrates at Ulu Gombak may be enough to not preclude strong competition for resources. At Batu Caves, C. flavigaster has been observed at the entrance to Dark Cave.

Relationships. Cnemaspis flavigaster is the basal species of the argus group ( Fig. 2 View FIGURE 2 ).

Material examined. Malaysia: Selangor, Kepong , Forest Research Institute of Malaysia HC 00282, 00286; ZRC 2.6708 View Materials 11 View Materials (type series). Material examined since Chan & Grismer (2008) : Malaysia: Selangor, Kepong , Forest Research Institute of Malaysia LSUHC 6562 View Materials , 8835–36 View Materials ; Ulu Gombak LSUHC 10380 View Materials .


Forest Research Institute, Malaysia














Cnemaspis flavigaster Chan & Grismer, 2008

Grismer, Lee, Wood, Perry L., Anuar, Shahrul, Riyanto, Awal, Ahmad, Norhayati, Muin, Mohd A., Sumontha, Montri, Grismer, Jesse L., Onn, Chan Kin, Quah, Evan S. H. & Pauwels, Olivier S. A. 2014

Cnemaspis kumpoli

Dring, J. C. 1979: 223

Cnemaspis affinis

Boulenger, G. A. 1912: 39
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