Abstract
A new species of Asian rock gecko, genus Cnemaspis, is described from Padawan, western Sarawak, Malaysian Borneo. The new species forms a clade with C. paripari and C. nigridia of the C. nigridia group in a mitochondrial DNA phylogeny and is similar to them morphologically in some characters such as caudal scalation. It differs from the other Asian Cnemaspis species in its unique combination of snout–vent length (up to 62.7 mm), 4–9 precloacal pores in males, keeled subcaudals with an enlarged, smooth, median row, presence of ventrolateral caudal tubercles, and coloration (head and upper flanks dark-yellow; anterior portion of tail black; posterior portion of tail white with black, paravertebral blob). Phylogenetic relationships within the C. nigridia group and the distributional ranges of species within the group suggest allopatric speciation by geographic isolation.
References
Anisimova, M., Gil, M., Dufayard, J.F., Dessimoz, C. & Gascuel, O. (2011) Survey of branch support methods demonstrates accuracy, power, and robustness of fast likelihood-based approximation schemes. Systematic Biology, 60 (5), 685–699. https://doi.org/10.1093/sysbio/syr041
Das, I. & Bauer, A.M. (1998) Systematics and biogeography of Bornean geckos of the genus Cnemaspis Strauch, 1887 (Sauria: Gekkonidae), with the description of a new species. Raffles Bulletin of Zoology, 46 (1), 11–28.
Das, I. & Grismer, L.L. (2003) Two new species of Cnemaspis Strauch 1887 (Squamata, Gekkonidae) from the Seribuat Archipelago, Pahang and Johor States, West Malaysia. Herpetologica, 59 (4), 544–552.
Doughty, P., Palmer, R., Sistrom, M.J., Bauer, A.M. & Donnellan, S.C. (2012) Two new species of Gehyra (Squamata: Gekkonidae) geckos from the north-west Kimberley region of Western Australia. Records of the Western Australian Museum, 27 (2), 117–134.
https://doi.org/10.18195/issn.0312-3162.27(2).2012.117-134Gray, J.E. (1845) Catalogue of the Specimens of Lizards in the British Museum. Trustees of the British Museum, London, 289 pp.
https://doi.org/10.5962/bhl.title.5499
Grismer, L.L. & Chan, K.O. (2009) A new species of karst dwelling Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from Sarawak, Borneo. Zootaxa, 2246, 21–31.
Grismer, L.L. & Chan, K.O. (2010) Another new Rock Gecko (genus Cnemaspis Strauch 1887) from Pulau Langkawi, Kedah, Peninsular Malaysia. Zootaxa 2419, 51–62.
Grismer, L.L., Chan, K.O., Nurolhuda, 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.
Grismer, L.L. & Ngo, V.T. (2007) Four new species of the gekkonid genus Cnemaspis Strauch 1887 (Reptilia: Squamata) from southern Vietnam. Herpetologica, 63, 482–500. https://doi.org/10.1655/0018-0831(2007)63[482:FNSOTG]2.0.CO;2
Grismer, L.L., Wood, P.L. Jr., Anuar, S., Riyanto, A., Ahmad, N., Muin, M.A., Sumontha, M., Grismer, J.L., Chan, K.O., Quah, E.S.H. & Pauwels, O.S.A. (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), 1–147.
https://doi.org/10.11646/zootaxa.3880.1.1
Hillis, D.M. & Bull, J.J. (1993) An empirical test of bootstrapping as a method for assessing confidence in phylogenetic analysis. Systematic Biology, 42 (2), 182–192. https://doi.org/10.1093/sysbio/42.2.182
Inger, R.F. (1958) A new gecko of the genus Cyrtodactylus, with a key to the species from Borneo and the Philippine Islands. Sarawak Museum Journal, 8, 261–264.
Jobb, G. (2011) TREEFINDER. Version March 2011. Available from: http://www.treefinder.de/ (accessed 24 July 2016)
Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution, 30 (4), 772–780.
https://doi.org/10.1093/molbev/mst010
Koch, A. & Schulz, S. (2014) First record of the gekkonid genus Cnemaspis Strauch, 1887 from Gunung Mulu National Park, northern Sarawak. East Malaysia may represent an undescribed species. Asian Herpetological Research, 5 (3), 209–212. https://doi.org/10.3724/SP.J.1245.2014.00209
Peters, W. (1871) Über neue Reptilien aus Ostafrika und Sarawak (Borneo), vorzüglich aus der Sammlung des Hrn. Marquis J. Doria zu Genua. Monatsberichte der Königlich Preussischen Akademie der Wissenschaften zu Berlin, 1871, 566–581．
Rice, P., Longden, I. & Bleasby, A. (2000) EMBOSS: the European Molecular Biology Open Software Suite. Trends in Genetics, 16 (6), 276–277. https://doi.org/10.1016/S0168-9525(00)02024-2
Smith, M.A. (1925) Contributions to the herpetology of Borneo. The Sarawak Museum Journal, 3, 15–34.
Tamura, K., Stecher, G., Peterson, D., Filipski, A. & Kumar, S. (2013) MEGA6: molecular evolutionary genetics analysis version 6.0. Molecular Biology and Evolution, 30 (12), 2725–2729.
https://doi.org/10.1093/molbev/mst197
Tanabe, A.S. (2008a) Phylogears2 version 2.0. Available from: http://www.fifthdimension.jp/ (accessed 24 July 2016)
Tanabe, A.S. (2008b) MrBayes5D. Available from: http://www.fifthdimension.jp/ (accessed 24 July 2016)
Tanabe, A.S. (2011) Kakusan4 and Aminosan: two programs for comparing nonpartitioned, proportional and separate models for combined molecular phylogenetic analyses of multilocus sequence data. Molecular Ecology Resources, 11 (5), 914–921. https://doi.org/10.1111/j.1755-0998.2011.03021.x
Taylor, E.H. (1963) The lizards of Thailand. University of Kansas Science Bulletin, 44, 687–1077.