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Hemidactylus pakkamalaiensis NARAYANAN, CHRISTOPHER, RAMAN, MUKHERJEE, PRABHU, LENIN, VIMALRAJ, DEEPAK, 2023

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Pakkamalai rock gecko
Tamil: பாக்கமைல பாைறப்பல்லி 
SynonymHemidactylus pakkamalaiensis 2023NARAYANAN, CHRISTOPHER, RAMAN, MUKHERJEE, PRABHU, LENIN, VIMALRAJ, DEEPAK 
DistributionIndia (Tamil Nadu)

Type locality: Pakkamalai Hill, Gingee Hills range, Villupuram district, Tamil Nadu, India (12.164819°N, 79.250909°E, 335m asl)  
Reproduction 
TypesHolotype. BNHS 2907 (Figs 3, 4, 6A) adult male, collected by Peter Christopher and Surya Narayanan on 27 November 2022.
Paratypes (n = 4). BNHS 2908 & BNHS 2909 (adult males), BNHS 2910 & BNHS 2911 (adult females), collections details same as the holotype (Figs 5, 6B). 
DiagnosisDiagnosis. A large-sized gecko of the genus Hemidactylus, snout–vent length up to a maximum SVL of 109 mm (n = 5). Dorsal pholidosis heterogeneous, composed of roughly circular, granular scales intermixed with much enlarged, fairly regularly arranged longitudinal rows of 19–22 striated subtrihedral tubercles at midbody. Enlarged tubercles on the two most medial parasagittal rows are small, subconical, strongly keeled and rounded, gradually increasing in size and becoming conical towards flanks, last two to three rows on flanks smaller, conical. Two well-developed pairs of postmentals, the inner pair longer than the outer pair and mental, and in broad contact behind the mental. Paravertebral rows with 21–24 tubercles; 34–38 transverse ventral scale rows at mid-body. Digits with enlarged scansors, lamellae in straight transverse series; two or three undivided basal lamellae beneath first finger and two or three beneath first toe; one or two undivided basal lamellae beneath fourth toe; ten or 11 lamellae (including undivided and divided) beneath first finger and nine or ten beneath first toe; 12 or 13 lamellae (including undivided and divided) beneath fourth finger and 12–14 beneath fourth toe; males with series of 19–21 femoral pores on each side separated by four or five poreless scales. Original tail depressed, oval in transverse section with a median dorsal furrow; scales on the tail slightly larger than dorsals, striated, with longitudinal series of 4–8 large, keeled, striated, posteriorly pointed tubercles. (Narayanan et al. 2023)


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Comment 
EtymologyNamed after its type locality Pakkamalai Hill. 
References
  • Narayanan S, Christopher P, Raman K, Mukherjee N, Prabhu P, Lenin M, Vimalraj S, Deepak V 2023. A new species of rock-dwelling Hemidactylus Goldfuss, 1820 (Squamata: Gekkonidae) from the southern Eastern Ghats, India. Vertebrate Zoology 73: 499–512
 
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