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Gekko petricolus TAYLOR, 1962

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Thai Gecko, Sandstone Gecko
G: Gelbrückengecko, Laos-Gecko 
SynonymGekko petricola TAYLOR 1962: 227
Gekko petricolus — TAYLOR 1963: 791
Gekko petricolus — RÖSLER 1995: 121
Gekko petricolus — COX et al. 1998: 83
Gekko petricolus — NGO & GAMBLE 2011
Gekko (Sundagekko) petricolus — WOOD et al. 2019
Gekko (Lomatodactylus) petricolus — WOOD et al. 2020 
DistributionThailand (Ubon Ratchatani, Si Saket), Laos, N Cambodia

Type locality: Forestry Station, Sanoi River, Ubon province.  
Reproductionoviparous 
TypesHolotype: FMNH 178275 
DiagnosisDiagnosis: None or only merest remnant of a web between digits; inner digits well developed, lacking claws, the subdigital lamellae undivided; body covered with fine subequal granules, intermixed with somewhat enlarged tubercles forming irregular rows, and separated by from two to five granules; postnasal and frontal areas depressed; rostral entering nostril; venter with about 30 rows of larger cycloid scales, somewhat imbricate; subcaudals widened except at base of tail and at tip; each proximal caudal segment with four enlarged tubercles. Tail slender, depressed; nine or ten preanal pores; no femoral pores. Yellow in life with a lavender-gray head; numerous rounded whitish spots evident.” (Taylor 1962: 227)


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CommentSimilar species: Gekko petricolus is closely related to G. badenii.

Group: The Gekko petricolus group currently contains 10 species, namely G. boehmei, badenii, canaensis, flavimaritus, grossmanni, lauhachindai, petricolus, russelltraini, takouensis, and G. vietnamensis (Meesook et al. 2021).
This group shares a combination of characters including: 82.9–108.5 mm snout–vent length (SVL); nares in contact with rostral; three nasals; postmentals relatively large; 8–18 dorsal tubercle rows; 8–15 precloacal pores; 1–3 postcloacal tubercles; the webbing between fingers and toes absent or weakly developed; lateral fold without tubercles; enlarged subcaudals; head with blotches or short stripes or without pattern; and dorsum with bands or more or less symmetrical blotches (Ngo et al. 2009; Panitvong et al. 2010; Ngo and Gamble 2011; Rösler et al. 2011; Luu et al. 2015, Rujirawan et al. 2019). 
References
  • Chan-ard, T., Parr, J.W.K. & Nabhitabhata, J. 2015. A field guide to the reptiles of Thailand. Oxford University Press, NY, 352 pp. [see book reviews by Pauwels & Grismer 2015 and Hikida 2015 for corrections] - get paper here
  • Cox, Merel J.; Van Dijk, Peter Paul; Jarujin Nabhitabhata & Thirakhupt,Kumthorn 1998. A Photographic Guide to Snakes and Other Reptiles of Peninsular Malaysia, Singapore and Thailand. Ralph Curtis Publishing, 144 pp.
  • Darevsky, I. S. & N. L. Orlov 1994. Eine bemerkenswerte neue, großwüchsige Art der Gattung Gekko: Gekko ulikovskii s. Salamandra 30 (1): 71-75 - get paper here
  • Grossmann, W. & V. STEIN 1988. Gekko petricolus TAYLOR 1962 - Haltung und Zucht im Terrarium. Sauria 10 (3): 27-30 - get paper here
  • Harbig, P. 2003. Beobachtungen an Gekko petricolus TAYLOR 1962 im Habitat nahe Khong Chiam, Ubon Ratchatani, Thailand. Sauria 25 (2): 37-45 - get paper here
  • Harbig, P. 2006. Nachweise von Gekko petricolus TAYLOR 1962 in der thailändischen Provinz Si Saket und im nördlichen Kambodscha sowie ergänzende Angaben zu seiner Biologie. Sauria 28 (2): 25-28 - get paper here
  • Harmsen, R. 1987. Enige opmerkingen over de Laos-gekko (Gekko petricolus). Lacerta 49 (12): 187-189 - get paper here
  • LUU, VINH QUANG; THOMAS CALAME, TRUONG QUANG NGUYEN, MINH DUC LE& THOMAS ZIEGLER 2015. Morphological and molecular review of the Gekko diversity of Laos with descriptions of three new species. Zootaxa 3986 (3): 279–306 - get paper here
  • Neang T., Grismer, L.L., Hun S. & Phan C. 2015. New herpetofauna records and range extensions for Daboia siamensis (Smith, 1917) and Gekko petricolus Taylor, 1962 from Cambodia. Cambodian Journal of Natural History, 2015: 172–182 - get paper here
  • Ngo Tri Van, Bauer, A.M.; Wood, P.L. & Grismer, J.L. 2009. A new species of Gekko Laurenti, 1768 (Squamata: Gekkonidae) from Dong Nai Province, Southeastern Vietnam. Zootaxa 2238: 33-42 - get paper here
  • Ngo, van Tri & Gamble, T. 2011. Gekko canaensis sp. nov. (Squamata: Gekkonidae), a new gecko from Southern Vietnam. Zootaxa 2890: 53–64
  • NGUYEN, V. D. H., NGUYEN, L. T., ORLOV, N. L., MURPHY, R. W., & NGUYEN, S. N. 2021. Gekko phuyenensis sp.nov.(Squamata: Gekkonidae), a new species from southern Vietnam. Zootaxa 4966 (2): 175-186 - get paper here
  • PANITVONG, NONN; MONTRI SUMONTHA, KANOKORN KONLEK & KIRATI KUNYA 2010. Gekko lauhachindai sp. nov., a new cave-dwelling gecko (Reptilia: Gekkonidae) from central Thailand. Zootaxa 2671: 40–52 - get paper here
  • Rafe M. Brown, Cameron D. Siler, Indraneil Das, Yong Min 2012. Testing the phylogenetic affinities of Southeast Asia’s rarest geckos: Flap-legged geckos (Luperosaurus), Flying geckos (Ptychozoon) and their relationship to the pan-Asian genus Gekko. Molecular Phylogenetics and Evolution 63: 915-921 - get paper here
  • Rösler, Herbert 1995. Geckos der Welt - Alle Gattungen. Urania, Leipzig, 256 pp.
  • RÖSLER, HERBERT; AARON M. BAUER, MATTHEW P. HEINICKE, ELI GREENBAUM, TODD JACKMAN, TRUONG QUANG NGUYEN & THOMAS ZIEGLER 2011. Phylogeny, taxonomy, and zoogeography of the genus Gekko Laurenti, 1768 with the revalidation of G. reevesii Gray, 1831 (Sauria: Gekkonidae). Zootaxa 2989: 1–50 - get paper here
  • Rujirawan, Attapol; Jonathan J. Fong, Natee Ampai, Siriporn Yodthong, Korkhwan Termprayoon & Anchalee Aowphol 2019. A new karst-dwelling gecko of the Gekko petricolus group (Reptilia: Gekkonidae) from Phitsanulok Province, central Thailand. J. Nat. Hist. 53: 557–576 (2019) - get paper here
  • Schlüter, U. 1999. Haltung und Zucht des Laos-Geckos (Gekko petricolus). DATZ 52 (9): 35-37
  • Shcherbak N N. [= Szczerbak] & Nekrasova O. D. 1994. A contribution to the knowledge of gekko lizards of southern Vietnam with description of a new species (Reptilia, Gekkonidae) [in Russian]. Vestnik Zoologii, Kiev 1994 (1): 48-52.
  • Taylor, E.H. 1962. New oriental reptiles. Univ. Kansas Sci. Bull. 43: 209-263 - get paper here
  • Taylor, E.H. 1963. The lizards of Thailand. Univ. Kansas Sci. Bull. 44: 687-1077. - get paper here
  • Ulber, T. & E. Ulber 1987. Auf der Mauer, auf der Lauer - Erfahrungen mit der Zimmerhaltung von verschiedenen Geckos. Sauria 9 (2): 7-12 - get paper here
  • Wood Jr, Perry L.; Xianguang Guo, Scott L. Travers, Yong-Chao Su, Karen V. Olson, Aaron M. Bauer, L. Lee Grismer, Cameron D. Siler, Robert G. Moyle, Michael J. Andersen, Rafe M. Brown 2019. Parachute geckos free fall into synonymy: Gekko phylogeny, and a new subgeneric classification, inferred from thousands of ultraconserved elements. bioRxiv 717520 [preprint] - get paper here
  • Wood, P. L., Guo, X., Travers, S. L., Su, Y. C., Olson, K. V., Bauer, A. M., Grismer, L. L., Siler, C. D., Moyle, R. G., Andersen, M. J. and Brown, R. M. 2020. Parachute geckos free fall into synonymy: Gekko phylogeny, and a new subgeneric classification, inferred from thousands of ultraconserved elements. Molecular Phylogenetics and Evolution 146: 106731 [corrigendum: MPE 164: 107255] - get paper here
  • Zuklin, Tomas; Nathanael Maury, Saly Sitthivong, Thong Van Pham, Olivier Le Duc, Cedric Bordes, Benjamin Leprince, Charlotte Ducotterd, Lo Van Oanh, Phimphasone Vilay, Vinh Quang Luu, Luca Luiselli 2021. The «Empty Forest Syndrome» and the Herpetofaunal Communities in Laos (South-Eastern Asia). Russian Journal of Herpetology 28 (6): 333-347 - get paper here
 
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