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Cnemaspis caudanivea GRISMER & NGO, 2007

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Hon Tre Island Rock Gecko 
SynonymCnemaspis caudanivea GRISMER & NGO 2007
Cnemaspis caudanivea — GRISMER et al. 2014: 44 
DistributionS Vietnam (Kien Giang)

Type locality: Hon Tre Island, Kien Hai District, Kien Giang Province, Vietnam (09° 58.342’ N, 104° 50.955’ E), 100 m elevation.  
Reproductionoviparous 
TypesHolotype: UNS 83 
DiagnosisDiagnosis: Cnemaspis caudanivea differs from all other southeast Asian Cnemaspis in having the unique combination of a maximum SVL of 44.0 mm; eight or nine supralabials; eight infralabials; scales of anterior portion of forearm keeled; smooth ventral scales; no femoral pores; two, widely space, precloacal pores; no linearly arranged row of tubercles on the flanks; paravertebral and lateral longitudinal rows of caudal tubercles; smooth subcaudals lacking an enlarged median row; one or two cloacal tubercles; large, shield-like subtibial scales; enlarged submetatarsal scales beneath first metatarsal; 24–29 subdigital lamellae on fourth toe; no distinct, large, dark spots on neck and back; no white markings on flanks; dark bands encircling tail; and posterior 25% of tail brilliant, immaculate white. 
CommentAbundance: only known from its original description (Meiri et al. 2017). 
Etymologynamed after the Latin noun “cauda” meaning ‘‘tail’’ and niveus, an adjective meaning ‘‘of snow or snow-like’’. Caudanivea means ‘‘tail snow white’’ and refers to the brilliant, white coloration of the posterior portion of this species’ tail. 
References
  • Grismer, J.L.; Grismer, L.L. & Chav T. 2010. New Species of Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from Southwestern Cambodia. Journal of Herpetology 44 (1): 28–36 - get paper here
  • Grismer, L. Lee; Chan K. Onn; Nasir, N. & Sumontha, M. 2008. A new species of karst dwelling gecko (genus Cnemaspis Strauch 1887) from the border region of Thailand and Peninsular Malaysia. Zootaxa 1875: 51–68 - get paper here
  • GRISMER, L. LEE; MONTRI SUMONTHA, MICHAEL COTA, JESSE L. GRISMER, PERRY L. WOOD, JR., OLIVIER S. G. PAUWELS & KIRATI KUNYA 2010. A revision and redescription of the rock gecko Cnemaspis siamensis (Taylor 1925) (Squamata: Gekkonidae) from Peninsular Thailand with descriptions of seven new species. Zootaxa 2576: 1–55 - get paper here
  • GRISMER, L.L. & JACOB SMITH 2023. Additions to the herpetofauna of Hon Son Island, Rach Gia Bay, Kien Giang Province, southern Vietnam with a discussion of syntopy between the granite cave-adapted Bent-toed Gecko Cyrtodactylus eisenmanae and a new Cyrtodactylus of uncertain taxonomic Zootaxa 5346 (3): 307–316 - get paper here
  • Grismer, L.L. & Ngo, V.T. 2007. Four new species of the gekkonid genus Cnemaspis Strauch 1887 (Reptilia: Squamata) from Southern Vietnam. Herpetologica 63 (4): 482-500 - get paper here
  • Grismer, L.L.; PERRY JR L. WOOD, SHAHRUL ANUAR, AWAL RIYANTO, NORHAYATI AHMAD, MOHD A. MUIN, MONTRI SUMONTHA, JESSE L. GRISMER, CHAN KIN ONN, EVAN S. H. QUAH, OLIVIER S. A. PAUWELS 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): 001–147 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Nguyen, H. N., Lu, C. , Chu, J. , Grismer, L. L., Hung, C. and Lin, S. 2018. Historical demography of four gecko species specializing in boulder cave habitat – its implications in the evolutionary dead end hypothesis and conservation. Mol Ecol. doi:10.1111/mec.14985 - get paper here
  • Nguyen, H. N., Lu, C.-W., Chu, J.-H., Grismer, L. L., Hung, C.-M., & Lin, S.-M. 2018. Historical demography of four gecko species specializing in boulder cave habitat - its implications in the evolutionary dead end hypothesis and conservation. Molecular Ecology, (June 2018), 1–13 - get paper here
  • Nguyen, H.N., Hung, C., Yang, M. et al. 2020. Sympatric competitors have driven the evolution of temporal activity patterns in Cnemaspis geckos in Southeast Asia. Sci Rep 10: 27 - get paper here
  • Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp.
  • Thompson, C. & Thompson, T. 2008. First contact in the Greater Mekong - new species discoveries. WWF, 40 pp. - get paper here
  • WOOD, PERRY JR. L.; EVAN S.H. QUAH, SHAHRUL ANUAR M.S., MOHD ABDUL MUIN 2013. A new species of lowland karst dwelling Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from northwestern Peninsular Malaysia. Zootaxa 3691 (5): 538–558 - get paper here
 
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