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Cyrtodactylus calamei LUU, BONKOWSKI, NGUYEN, LE, SCHNEIDER, NGO & ZIEGLER, 2016

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesE: Calame’s Bent-toed Gecko
Laotian: Ki Chiem Calame 
SynonymCyrtodactylus calamei LUU, BONKOWSKI, NGUYEN, LE, SCHNEIDER, NGO & ZIEGLER 2016 
DistributionC Laos

Type locality: karst forest, Tham Nok Aen region, Thong Xam Village (17°34.179’N, 105°50.329’E, elevation 210 m a.s.l.) within Hin Nam No NPA, Khammouane Province, central Laos. Map legend:
Type locality - Type locality.
 
Reproduction 
TypesHolotype. VNUF R.2015.28, adult male, collected on 25 March 2015 by V. Q. Luu, T. Calame, and K. Thanabuaosy.
Paratypes. IEBR A. 2015.36, adult male; NUOL R-2015.22, subadult male; VNUF R.2015.27, adult female, the same data as the holotype. 
CommentDiagnosis. Cyrtodactylus calamei sp. nov. can be distinguished from its congeners by a unique combination of the following characters: Adult SVL 80.0 ± 8.0 mm (mean ± SD); head dorsally with grey small scattered spots; nuchal loop present with indentations, not enlarged posteriorly, extending from each postnasal cross orbit and contacting on nape; four greyish brown, wide transverse bands between limbs, sometimes irregular; dorsal surface with homogenous, low, round, weakly keeled scales; 39–42 ventral scales at midbody; ventrolateral skin folds well-defined; 183–197 ventral scale rows from mental to cloacal slit; 101–114 scale rows at midbody; 35–39 precloacal-femoral pores in males, 38 in the female; enlarged femoral and precloacal scales present; four postcloacal tubercles; subcaudal scales transversely enlarged.

Comparisons. Luu et al. compared Cyrtodactylus calamei sp. nov. with other Cyrtodactylus species known from Laos and neighbouring countries in the mainland Indochina region, including Vietnam, Cambodia, and Thailand based on examination of specimens (see Appendix) and data provided from taxonomic publications (compiled and cited in Luu et al. 2016) (see Tables 3, Luu et al. 2016) (see Table 3). The cluster and correspondence analyses indicated that Cyrtodactylus calamei sp. nov. is nested in the same clade with C. darevskii and the species to be described in the following (Figs. 2–3). Molecular phylogenetic analyses also strongly supported the sister relationship between the new species and afore mentioned taxa (see Fig. 1).
Morphologically, Cyrtodactylus calamei sp. nov. closely resembles the other karst forest species, C. darevskii and C. phongnhakebangensis, in dorsal colour pattern. However, the new species can be distinguished from C. darevskii by its smaller size (maximum SVL 89.3 mm versus 100 mm), having fewer dorsal tubercle rows (10–16 versus 16–20), fewer femoral and precloacal pores in males (35–39 versus 38–44), more femoral and precloacal pores in females (38 versus 24–34), the presence of heart-shaped marking on postocciput (versus absent), four greyish brown regular transverse body bands as wide as nearly two times of nuchal band (versus four to five dark irregular transverse breaking bands as narrow as nuchal band), first body band wide, butterfly-shaped (versus thin, U-shaped in C. darevskii), tail with light rings (versus banded); from C. phongnhakebangensis by its smaller size (maximum SVL 89.3 mm versus 96.3 mm), more scale rows from mental to the front of cloacal slit (183–197 versus 161–177), nuchal loop narrow, indented, not posteriorly enlarged (versus wide, posteriorly enlarged), four greyish brown transverse body bands, slightly narrower light bands (versus three to five dark transverse body bands, twice wider than light bands), and tail with light rings (versus bands) (see Table 4 in Luu et al. 2016).

Sexual dimorphism. The single adult female differs from two adult males by its larger size (maximum SVL 89.3 mm versus 75.8 mm in the males) and lacking of hemipenial swellings at the base of tail (see Table 4 & Fig. 6, Luu et al. 2016).

Natural history. Specimens were found at night between 19:30 and 21:08h, on limestone outcrops, at elevations between 190 and 260 m a.s.l. The surrounding habitat was karst forest. The relative humidity was 80% and the air temperature ranged from 23 to 26oC (see Table 5, Luu et al. 2016). 
EtymologyNamed after Mr. Thomas Calame, from WWF Greater Mekong, Vientiane, Laos, who participated in the field research of the authors in Hin Nam No NPA, Khammouane Province between 2014 and 2015. 
References
  • Kwet, Axel 2017. Neue Arten: Liste der im Jahr 2016 neu beschriebenen Reptilien Terraria-Elaphe (3): 54-70 - get paper here
  • LUU, VINH QUANG; MICHAEL BONKOWSKI, Truong QUang Nguyen, MINH DUC LE, NICOLE SCHNEIDER, HANH THI NGO, THOMAS ZIEGLER 2016. Evolution in karst massifs: Cryptic diversity among bent-toed geckos along the Truong Son Range with descriptions of three new species and one new country record from Laos. Zootaxa 4107 (2): 101–140 - get paper here
 
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