A New Cyrtodactylus (Squamata: Gekkonidae) from Huong Son Limestone Forest, Hanoi, Northern Vietnam
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See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/265017658 A new Cyrtodactylus (Squamata: Gekkonidae) from Huong Son limestone forest, Hanoi, northern Vietnam Article in Zootaxa · December 2011 DOI: 10.11646/zootaxa.3129.1.3 CITATIONS READS 28 391 4 authors, including: Vinh Quang Luu Truong Nguyen Vietnam National University of Forestry, Hanoi, Vietnam The Institute Of Ecology and Biological Resources 69 PUBLICATIONS 380 CITATIONS 391 PUBLICATIONS 4,074 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Save Vietnam Biodiversity View project Distribution, exploitation and basic ecology of Black-breasted Leaf Turtle (Geoemyda spengleri Gmelin 1789) in Vietnam View project All content following this page was uploaded by Vinh Quang Luu on 26 August 2014. The user has requested enhancement of the downloaded file. TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. Zootaxa 3129: 39–50 (2011) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2011 · Magnolia Press ISSN 1175-5334 (online edition) A new Cyrtodactylus (Squamata: Gekkonidae) from Huong Son limestone forest, Hanoi, northern Vietnam VINH QUANG LUU1, TRUONG QUANG NGUYEN2, HUY QUANG DO1, THOMAS ZIEGLER3,4 1Department of Wildlife, Faculty of Natural Resource and Environmental Management, The Forestry University of Vietnam, Xuan Mai, Chuong My, Ha Noi, Vietnam 2Institute of Ecology and Biological Resources, 18 Hoang Quoc Viet St., Hanoi, Vietnam 3Cologne Zoo, Riehler Straße 173, D-50735, Cologne, Germany 4Corresponding author. E-mail: [email protected] Abstract We describe a new species of the genus Cyrtodactylus based on two adult specimens from Huong Son limestone forest, Hanoi, Vietnam. Cyrtodactylus huongsonensis sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by a combination of the following characters: medium-sized, with a maximum SVL of 89.8 mm; dorsal pattern consisting of dark nuchal loop, neck band and five in part irregular transverse body bands between limbs; two enlarged lateral chin- shields in contact with first postmental pair; dorsal tubercles present on occiput, body, forearms, hind limbs and tail base; 14–16 irregularly running dorsal tubercle rows; ventrals in 41–48 longitudinal rows at midbody; lateral skin folds present, without interspersed tubercles; six precloacal pores plus in total 17 femoral pores in males, which are separated by 8–12 poreless scales; enlarged femoral scales and precloacal scales present; three postcloacal spurs in males; subcaudal scales transversely enlarged. This is the 24th species of Cyrtodactylus known from Vietnam. Key words: Cyrtodactylus huongsonensis sp. nov., Hanoi, Vietnam, morphology, taxonomy Introduction The genus Cyrtodactylus is the most diverse group of gekkonids to date (e.g., Kluge 2001, Uetz et al. 2011). The widespread radiation occurs throughout tropical South Asia, Indochina, the Philippines, the Indo-Australian Archi- pelago, and the Solomon Islands in the East (Bauer & Henle 1994). Vietnam has been one of the countries of the most numerous discoveries of new Cyrtodactylus to date. Until 1997, only three species had been recorded for the country, C. condorensis (Smith, 1921), C. intermedius (Smith, 1917), and C. irregularis (Smith, 1921). Since then 20 additional species have been described from Vietnam, namely C. badenensis Nguyen, Orlov & Darevsky, 2006, C. bichnganae Ngo & Grismer, 2010, C. cattienensis Geissler, Nazarov, Orlov, Böhme, Phung, Nguyen & Ziegler, 2009, C. caovansungi Orlov, Nguyen, Nazarov, Ananjeva & Nguyen, 2007, C. chauquangensis Hoang, Orlov, Ananjeva, Johns, Hoang & Dau, 2007, C. cryptus Heidrich, Rösler, Vu, Böhme & Ziegler, 2007, C. eisenmanae Ngo, 2008, C. grismeri Ngo, 2008, C. hontreensis Ngo, Grismer & Grismer, 2008, C. huynhi Ngo & Bauer, 2008, C. martini Ngo, 2011, C. nigriocularis Nguyen, Orlov & Darevsky, 2006, C. paradoxus (Darevsky & Szczerbak, 1997), C. phongnhakebangensis Ziegler, Rösler, Herrmann & Vu, 2003, C. phuquocensis Ngo, Grismer & Grismer, 2010, C. pseudoquadrivirgatus Rösler, Vu, Nguyen, Ngo & Ziegler, 2008, C. roesleri Ziegler, Nazarov, Orlov, Nguyen, Vu, Dang, Dinh & Schmitz, 2010, C. takouensis Ngo & Bauer, 2008, C. yangbayensis Ngo & Chan, 2010, and C. ziegleri Nazarov, Orlov, Nguyen & Ho, 2008 (Ziegler et al. 2002, Nguyen et al. 2006, Heidrich et al. 2007, Hoang et al. 2007, Orlov et al. 2007, Nazarov et al. 2008, Ngo 2008, Ngo & Bauer 2008, Ngo et al. 2008, Rösler et al. 2008, Geissler et al. 2009, Ngo & Chan 2010, Ngo & Grismer 2010, Ngo et al. 2010, Ziegler et al. 2010, Ngo 2011). Recent field research in northern Vietnam led to the discovery of more new populations of Cyrtodactylus. Based on morphological examination of two adult specimens, we herein describe a new species from Huong Son limestone forest, My Duc District, Hanoi. Accepted by A. Bauer: 2 Nov. 2011; published: 14 Dec. 2011 39 TERMS OF USE This pdf is provided by Magnolia Press for private/research use. Commercial sale or deposition in a public library or website is prohibited. Material and methods Specimens of the new Cyrtodactylus were collected in Huong Son limestone forest by Vinh Quang Luu, Hieu Van Pham, and Nghia Van Ha on 13 June 2011. Specimens were anaesthetized, ethanol-fixed and subsequently depos- ited in the collections of the Institute of Ecology and Biological Resources, Vietnamese Academy of Science and Technology Hanoi (IEBR), Vietnam, and the Zoologisches Forschungsmuseum Alexander Koenig, Bonn (ZFMK), Germany. For measurements and scale counts see Ziegler et al. (2010), terminology followed Rösler (1995). Measure- ments were taken with a slide-calliper (to the nearest 0.1 mm). Abbreviations are as follows: snout vent length (SVL), from tip of snout to vent; tail length (TaL), from vent to tip of tail; maximum head height (HH), from occiput to underside of jaws; head length (HL), from tip of snout to the posterior margin of the retroarticular; max- imum head width (HW); greatest diameter of orbit (OD); snout to eye distance (SE), measured from tip of snout to anteriormost point of eye. Scale counts were taken as follows: supralabials (SL); infralabials (IL); nasal scales surrounding nare, from rostral to labial (but except counting rostral and labial), i.e. nasorostral, supranasal, postnasals (N); postrostrals or internasals (IN); number of distinguishable eyelid fringe scales or ciliaria (CIL); postmentals (PM); dorsal tubercle rows (DTR), granular scales surrounding dorsal tubercles (GST); ventral scales in longitudinal rows at midbody (V); number of scales along the midbody from mental shield to anterior edge of cloaca (SLB); enlarged femoral scales (EFS); femoral pores (FP); precloacal pores (PP); postcloacal tubercles (PAT); subdigital lamellae on fourth finger (LD4); subdigital lamellae on fourth toe (LT4). Bilateral scale counts were given as left/right. Cyrtodactylus huongsonensis sp. nov. Holotype. Adult male (IEBR A.2011.3) collected on 13 June 2011 by Vinh Quang Luu, Hieu Van Pham, and Nghia Van Ha in Huong Son limestone forest (25o35’N, 105o45’E), My Duc District, Hanoi, northern Vietnam at an eleva- tion of ca. 120 m a.s.l. (Figs. 1–4). Paratype. Adult female (ZFMK 92293) the same collection data as for the holotype (Fig. 4). Diagnosis. A medium-sized Cyrtodactylus with a maximum SVL of 89.8 mm, distinguished from all conge- ners by the combination of the following characters: 1) dorsal pattern consisting of a dark nuchal loop, neck band and five in part irregularly shaped transverse body bands between limbs; 2) two enlarged lateral chinshields in con- tact with first postmental pair; 3) dorsal tubercles present on occiput, body, forearms, hind limbs and tail base; 4) 14–16 irregular dorsal tubercle rows; 5) ventrals in 41–48 longitudinal rows at midbody; 6) lateral skin folds present, lacking tubercles; 7) six precloacal pores plus in total 17 femoral pores in males separated by 8–12 pore- less scales; 8) enlarged femoral scales present; 9) enlarged precloacal scales present; 10) precloacal groove absent; 11) 3 postcloacal spurs in males; 12) subcaudal scales transversally enlarged. Description of holotype. Size medium (SVL 89.8 mm, TaL 78.0 mm, regenerated), distance from posterior corner of eye to anterior margin of ear including ciliaria 8.4 mm, maximum horizontal ear diameter 1.9 mm; for further measurements see Table 1. Rostral wider than high (RW 3.7 mm, RH 2.2 mm, RW/RH 1.2) with an inverse Y-shaped median suture; supralabials 10/12; infralabials 10/11; nares bordered by rostral anteriorly, first supralabial laterally and four nasals posteriorly; supranasals separated from each other by two nasorostrals and a rectangular internasal; medial snout scales granular, those in contact with and nearby supralabials flattened and larger than medial scales; upper anterior ciliaries 3–4 times larger than posterior cilaries; head scales somewhat granular, smaller than median snout scales; anterior supraocular region, back of head and temporal region with rounded, conical tubercles, 3–6 times larger than surrounding scales; mental triangular, slightly wider than rostral; one pair of enlarged postmentals, longer than wide, in broad contact posteriorly; postmentals bordering mental anteriorly, first labials, one pair of enlarged gular scales, with four small gular scales