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Cyrtodactylus otai NGUYEN, LE, VAN PHAM, NGO, HOANG, THE PHAM & ZIEGLER, 2015

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Ota’s Bent-toed Gecko
Vietnamese: Thạch sùng ngón ô-ta 
SynonymCyrtodactylus otai NGUYEN, LE, VAN PHAM, NGO, HOANG, THE PHAM & ZIEGLER 2015 
DistributionNW Vietnam (Hoa Binh, Son La)

Type locality: karst forest near Hang Kia Village (20°44.347’N, 104°53.392’E, elevation 1232 m a.s.l.), Hang Kia Commune, within Hang Kia—Pa Co NR, Mai Chau District, Hoa Binh Province, northwestern Vietnam  
Reproductionoviparous; one female (IEBR A.2015.28) contained two eggs (12.9–14.4 mm in length and 8.7–9.4 mm in width, NGUYEN et al. 2015). 
TypesHolotype: IEBR A.2015.26 (HB 2014.8), adult male, collected on 11 April 2014 by T. Q. Nguyen, C. T. Pham, M. D. Le, and H. N. Ngo (hereafter TQN et al.). Paratypes. IEBR A.2015.27 (HB.2014.7), adult male, ZFMK 96721 (HB 2014.9), adult male, IEBR A.2015.28 (HB 2014.10), adult female, the same data as the holotype; VNMN A.2015.60 (HB.2014.1), adult female, collected on 10 April 2014 by TQN et al., in karst forest near Hang Kia Village (20o43.502’N, 104o54.292’E, elevation 981 m a.s.l.) within Hang Kia—Pa Co NR, Hoa Binh Province, northwestern Vietnam. 
DiagnosisDiagnosis. The new species can be distinguished from other members of the genus Cyrtodactylus from Indochina by a combination of the following characters: medium size (SVL up to 90.6 mm); ciliaria 26–30, dorsal tubercles in 11–14 irregular rows; 38–43 ventral scale rows; ventrolateral folds present without interspersed tubercles; precloacal pores absent in females, 7–8 in males, in a continuous row; enlarged femoral scales absent; 2 or 3 postcloacal tubercles; subcaudals slightly enlarged; lamellae under toe IV 19–22; head and neck with dark blotches; nuchal loop discontinuous; five or six brown dorsal bands between limb insertions.
CommentSexual dimorphism and variation. The females differ from the males in the absence of precloacal pores and hemipenial swellings at the tail base. There is a dark brown blotch in the middle of the neck of the holotype and one paratype (VNMN A.2015.60) but absent in three other paratypes (NGUYEN et al. 2015).

Abundance: only known from its original description (Meiri et al. 2017). 
EtymologyWe name this new species in honor of Prof. Dr. Hidetoshi Ota, Institute of Natural and Environmental Sciences, University of Hyogo, Japan, in recognition of his outstanding contributions towards gecko systematics. 
  • Kwet, A. 2016. Liste der im Jahr 2015 neu beschriebenen Reptilien. Terraria-Elaphe 2016 (3): 56-67 - get paper here
  • LUU, VINH QUANG; Truong QUang Nguyen, MINH DUC LE, MICHAEL BONKOWSKI, THOMAS ZIEGLER 2016. A new species of karst-dwelling bent-toed gecko (Squamata: Gekkonidae) from Khammouane Province, central Laos. Zootaxa 4079 (1): 087–102 - 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, TRUONG QUANG; ANH VAN PHAM, THOMAS ZIEGLER, HANH THI NGO, MINH DUC LE 2017. A new species of Cyrtodactylus (Squamata: Gekkonidae) and the first record of C. otai from Son La Province, Vietnam. Zootaxa 4341 (1): 25-40 - get paper here
  • NGUYEN, TRUONG QUANG; MINH DUC LE, ANH VAN PHAM, HAI NGOC NGO, CHUNG VAN HOANG, CUONG THE PHAM & THOMAS ZIEGLER 2015. Two new species of Cyrtodactylus (Squamata: Gekkonidae) from the karst forest of Hoa Binh Province, Vietnam. Zootaxa 3985 (3): 375–390 - get paper here
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