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Cnemaspis similan AMPAI, RUJIRAWAN, YODTHONG, TERMPRAYOON, STUART, WOOD & AOWPHOL, 2022

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Ko Similan Rock Gecko
Thai: Jing Jok Niew Yaow Ko Similan (จิ้งจกนิ้วยาวเกาะสิมิลัน) 
SynonymCnemaspis similan AMPAI, RUJIRAWAN, YODTHONG, TERMPRAYOON, STUART, WOOD & AOWPHOL 2022 
DistributionThailand (Phang-nga)

Type locality: Thailand, Phang-nga Province, Thai Mueang District, Lam Kaen Subdistrict, Mu Ko Similan National Park, Ko Similan, Ao Nguang Chang Bay (8°64.840'N, 97°64.834'E; 13 m a.s.l.)  
Reproduction 
TypesHolotype. ZMKU R 00984, adult male (Fig. 8), collected on 5 March 2018 by Natee Ampai, Attapol Rujirawan, Siriporn Yodthong and Piyawan Puanprapai.
Paratypes. Three adult females paratypes (Fig. 9). ZMKU R 00985–00986 (two adult females), same data as holotype. ZMKU R 00987 (one adult female), same data as holotype except collected on 6 March 2018 by Natee Ampai, Attapol Rujirawan, Siriporn Yodthong and Piyawan Puanprapai. 
DiagnosisDiagnosis. Cnemaspis similan sp. nov. can be distinguished from all other members of the C. siamensis group by having the following combination of characters: (1) SVL of 47.6 mm in adult male and 38.6–48.1 mm (mean 43.6 ± 4.8 mm, N = 3) in adult females; (2) eight or nine supralabial and seven or eight infralabial scales; (3) ventral scales keeled (4) one pore-bearing precloacal scale, pore rounded in male; (5) 24 or 25 paravertebral tubercles, arranged randomly; (6) five small, elongated, spine-like tubercles on lower flanks; (7) 23 or 24 subdigital lamellae under the 4th toe; (8) no enlarged median subcaudal scale row; (9) ventrolateral caudal tubercles anteriorly present; (10) two postcloacal tubercles on lateral surface of hemipenial swellings at tail base in male; (11) sexual dimorphism in dorsal and ventral patterns; and (12) pale yellow reticulum on head, neck, flanks, belly and limbs only in male. (Ampai et al. 2022: 142) 
Comment 
EtymologyNamed after the type locality. 
References
  • Ampai N, Rujirawan A, Yodthong S, Termprayoon K, Stuart BL, Wood Jr PL, Aowphol A 2022. Hidden diversity of rock geckos within the Cnemaspis siamensis species group (Gekkonidae, Squamata): genetic and morphological data from southern Thailand reveal two new insular species and verify the phylogenetic affinities of C. chanardi and C. kam ZooKeys 1125: 115–158 - get paper here
  • Kwet, A. 2023. Liste der im Jahr 2022 neu beschriebenen Reptilien. Elaphe 2023 (3): 48-73
 
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