Cyrtodactylus inthanon, Kunya, Kirati, Sumontha, Montri, Panitvong, Nonn, Dongkumfu, Wuttipong, Sirisamphan, Thana & Pauwels, Olivier S. G., 2015
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publication ID |
https://doi.org/ 10.11646/zootaxa.3905.4.9 |
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publication LSID |
lsid:zoobank.org:pub:0592C749-F59B-4E87-9C90-3F74D59F3798 |
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DOI |
https://doi.org/10.5281/zenodo.5676736 |
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persistent identifier |
https://treatment.plazi.org/id/0F3187CF-4438-B266-FF28-C64FFDE80155 |
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Plazi |
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scientific name |
Cyrtodactylus inthanon |
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sp. nov. |
Cyrtodactylus inthanon sp. nov.
( Figs 1–7 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 )
Holotype. THNHM 22550; adult male from Doi Inthanon (ca. 18°35'32" N, 098°29'12" E, alt. ca. 700 m asl), Amphoe (= District) Jom Thong, Chiang Mai Province, northern Thailand. Collected by W. Dongkumfu on 7 February 2014.
Paratypes. THNHM 25605 (field no. MS 320) and CUMZ-R-0.2320 (field no. MS 503), adult females, same locality, date and collector data as the holotype.
Diagnosis. Cyrtodactylus inthanon sp. nov. can be distinguished from all other congeneric species by its maximum known SVL of 87.3 mm; 18 to 20 longitudinal rows of dorsal tubercles; a continuous series of 34 to 37 enlarged femoro-precloacal scales, including four to six pitted (female) or pore-bearing (male) scales on each femur separated by a diastema from five pitted (females) or pore-bearing (male) precloacal scales; no precloacal groove nor depression; transversely enlarged subcaudal scales; and three to five irregular beige dorsal bands between limb insertions.
Description of holotype. Adult male. SVL 87.3 mm. TailL 102.0 mm (only first 12.4 mm original). Head relatively long (HeadL/SVL 0.30), wide (HeadW/HeadL 0.63), not markedly depressed (HeadH/HeadL 0.41), distinct from slender neck. Loreal region inflated, canthus rostralis not prominent. Snout elongate (SnOrb/HeadL 0.38), rounded, longer than orbit diameter (OrbD/SnOrb 0.70); scales on snout small, rounded to oval, granular to weakly conical, mostly homogeneous, larger than those on crown, interorbital and occipital regions. Eye large (OrbD/HeadL 0.27); pupil vertical with crenelated margins; supraciliaries short, those at posterior part of orbit bearing small conical spines. Ear opening rounded, relatively small (EarL/HeadL 0.06); orbit to ear distance subequal to orbit diameter (OrbEar/OrbD 1.01). Rostral much wider (3.3 mm) than deep (2.0 mm), rostral crease nearly half of rostral height. Two enlarged supranasals separated from one another by an elongate internasal. Rostral in contact with first supralabials, nostrils, supranasals and internasal. Nostrils oval, more or less laterally directed, each surrounded by supranasal, rostral, first supralabial and two enlarged postnasals. Three or four rows of small scales separate orbit from supralabials. Mental triangular, wider (3.4 mm) than deep (2.9 mm). A single pair of greatly enlarged postmentals in broad contact behind mental, each bordered anteromedially by mental, anterolaterally by first infralabial, posterolaterally by an enlarged lateral chinshield, and posteriorly by two granules. Supralabials to mid-orbital position 7/7, enlarged supralabials to angle of jaws 10/11. Infralabials 9/9. Interorbital scale rows across narrowest point of frontal bone 24.
Body slender, relatively short (AG/SVL 0.43) with well-defined non-denticulate ventrolateral folds. Dorsal scales weakly heterogeneous, domed to conical; regularly distributed tubercles (about five times size of adjacent scales) extending from shoulder region onto tail base, smaller tubercles on postocular region, crown, occiput and nape; most tubercles bearing a strong keel, less marked on lower flank tubercles; tubercles on posterior trunk and sacral region most prominent; tubercles in 20 regular rows at midbody, typically separated from one another by two or three dorsal granules. Ventral scales larger than dorsals, smooth, oval and subimbricate, largest on posterior abdomen and in precloacal region. Midbody scale rows across belly between ventrolateral folds 34. Gular region with homogeneous, smooth, juxtaposed granular scales. A continuous row of 35 enlarged femoro-precloacal scales, as follows, from left to right: one unpitted poreless femoral scale + six pore-bearing femoral scales + a diastema of nine unpitted poreless scales + five pore-bearing precloacal scales + a diastema of eight unpitted poreless scales + six pore-bearing femoral scales. Postcloacal spurs each bearing three enlarged, conical scales.
Scales on palm and sole smooth, rounded to oval or hexagonal, slightly domed. Scalation on dorsal surface of hind and forelimbs similar to body dorsum with enlarged tubercles interspersed among smaller scales. Fore and hind limbs relatively long, slender (ForeaL/SVL 0.16, TibiaL/SVL 0.20). Digits long, slender, inflected at interphalangeal joints, all bearing robust, slightly recurved claws. Basal subdigital lamellae broad, oval to rectangular, without scansorial surfaces (7-8-8-7-7 right manus, 7-7-9-11 -9 right pes); narrow lamellae distal to digital inflection and not including ventral claw sheath: 9-9-12-13 -10 (right manus), 11-11-14-12 -12 (right pes); no interdigital webbing. Relative lengths of digits: IV>III>V>II>I (manus), V>IV>III>II>I (pes). Mostly regenerated tail, gently tapering to pointed tip, longer than SVL (TailL/SVL 1.17). Original and regenerated parts of tail with enlarged median subcaudal scales.
Coloration in life. Dorsal ground color of head, dorsum and tail brown. Three irregular light bands on dorsum between fore- and hind limb insertions, bifurcated at their base on the flanks; their central part shows the same color as the brown dorsal bands, and they bear prominent whitish tubercles, most contrasting on lower flanks ( Figure 1 View FIGURE 1 ). Continuous nuchal loop connects orbits. Reticulate pattern on top of head. Ground color of upper surfaces of fore- and hind limbs light brown, with irregular and discontinuous thin beige bands with scattered whitish tubercles. Original part of tail showing two light rings which do not encircle the tail. Dorsal surface of regenerated part of tail marbled with beige and light brown, darker ventrally. Iris dark brown. Throat, venter and undersides of fore- and hind limbs uniformly beige.
Variation. The paratypes resemble the holotype in most aspects of morphology and coloration ( Figures 2–3 View FIGURE 2 View FIGURE 3 ). Main morphometric and meristic characters of the type series are provided in Table 1 View TABLE 1 . THNHM 25605 shows a continuous series of 35 enlarged femoro-precloacal scales, as follows, from left to right: three unpitted poreless femoral scales + four pitted femoral scales + a diastema of six unpitted poreless scales + five pitted precloacal scales + a diastema of nine unpitted poreless scales + five pitted femoral scales + two unpitted poreless femoral scales. CUMZ-R-0.2320 shows a continuous series of 37 enlarged femoro-precloacal scales, as follows, from left to right: three unpitted poreless femoral scales + five pitted femoral scales + a diastema of eight unpitted poreless scales + five pitted preanal scales + a diastema of eight unpitted poreless femoral scales + six pitted femoral scales + two unpitted poreless femoral scales. In THNHM 25605, supranasals partly separated in their inferior part by an internasal. In CUMZ-R-0.2320, supranasals totally separated by an elongate internasal; rostral crease less than a fourth of rostral height; postcloacal spurs each bearing four conical scales. Three to five irregular beige dorsal bands between limb insertions ( Figures 1–2 View FIGURE 1 View FIGURE 2 , 4–7 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 ). Original tails show 11 or 12 light dorsal rings ( Figures 4 View FIGURE 4 , 6–7 View FIGURE 6 View FIGURE 7 ). Color pattern in juvenile ( Figure 7 View FIGURE 7 ) same as in subadult ( Figure 6 View FIGURE 6 ) and adults ( Figures 1–2 View FIGURE 1 View FIGURE 2 , 4–5 View FIGURE 4 View FIGURE 5 ).
Distribution and natural history. The species is known only from Doi Inthanon ( Figure 8 View FIGURE 8 ), from 700 to 1010 m a.s.l., where it is common. We encountered it while it was active at night on trees and large rocks along streams. It moved slowly when disturbed by torch light and bit when handled. It was found at direct proximity to the reptiles Acanthosaura lepidogaster (Cuvier) (Agamidae) , Gekko gecko (Linnaeus) , Hemidactylus frenatus Duméril & Bibron and H. platyurus (Schneider) , Hemiphyllodactylus chiangmaiensis Grismer, Wood & Cota (Gekkonidae) , Ahaetulla prasina (Boie) (Colubridae) , Amphiesma khasiense (Boulenger) (Natricidae) and Trimeresurus popeiorum Smith (Viperidae) , and the amphibians Ansonia inthanon Matsui, Nabhitabhata & Panha (Bufonidae) , Leptolalax pelodytoides (Boulenger) , Megophrys major Boulenger and M. minor Stejneger (Megophryidae) , Amolops marmoratus (Blyth) , Hylarana nigrovittata (Blyth) and Odorrana livida (Blyth) (Ranidae) . Captive specimens ate meal worms and crickets and seemed to quickly dehydrate with decreasing hygrometry. The new species’ known range entirely falls within Doi Inthanon National Park.
Etymology. The specific epithet inthanon refers to the type locality. It is a noun in apposition, invariable. We suggest the following common names: Took-kai Doi Inthanon ( Thai) , Doi Inthanon bent-toed gecko (English) , Cyrtodactyle du Doï Inthanon (French) , Doi Inthanon Bogenfingergecko ( German), Doiinthanonkromvingergekko (Dutch).
TABLE 1. Meristic and morphometric (in mm) data for the type series of Cyrtodactylus inthanon sp. nov. Paired meristic characters are given left / right.
| THNHM 22550 Holotype | THNHM 25605 Paratype | CUMZ-R-0.2320 Paratype | |
|---|---|---|---|
| Sex | Male | Female | Female |
| SVL | 87.3 | 86.7 | 83.5 |
| ForeaL | 13.6 | 13.8 | 13.2 |
| TibiaL | 17.2 | 17.1 | 16.1 |
| TailL | 102.0 (last 89.6 regenerated) | 51.7 (last 44.6 regenerated) | 102.0 (last 42.0 regenerated) |
| TailW | 6.2 | 7.2 | 6.1 |
| AG | 37.5 | 35.4 | 36.9 |
| HeadL | 26.4 | 25.0 | 24.2 |
| HeadW | 16.6 | 16.5 | 15.2 |
| HeadH | 10.7 | 10.6 | 9.5 |
| OrbD | 7.0 | 6.9 | 6.1 |
| OrbEar | 7.1 | 6.8 | 6.4 |
| SnOrb | 10.0 | 9.9 | 9.0 |
| NosOrb | 7.4 | 7.3 | 6.8 |
| Interorb | 5.6 | 4.8 | 4.6 |
| EarL | 1.6 | 1.4 | 1.3 |
| Internar | 2.4 | 2.4 | 2.1 |
| DorTub | 20 | 19 | 18 |
| PreclPi/PreclPo | 5 PreclPo | 5 PreclPi | 5 PreclPi |
| FemPi/FemPo | 6/6 FemPo | 5/4 FemPi | 6/5 FemPi |
| Ven | 34 | 29 | 29 |
| SL | 10/11 | 11/12 | 10/10 |
| IL | 9/9 | 10/10 | 9/9 |
| InterorbSc | 24 | 18 | 18 |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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