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Hemiphyllodactylus pakhaensis HA, HOANG, NGUYEN, HA & LUU, 2026

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Pakha Slender Gecko 
SynonymHemiphyllodactylus pakhaensis HA, HOANG, NGUYEN, HA & LUU 2026 
DistributionNW Vietnam (Son La Province)

Type locality: Pa Kha 1 Village, Long Phieng Commune, Son La Province, northwestern Vietnam (20°52'22.6"N, 104°24'03.6"E, at an elevation of 1,068 m a.s.l.).  
Reproduction 
TypesHolotype: VNUFR.2025.32 (Field No. Sonla02), an adult male, collected by Vinh Quang Luu, Vilay Phimpasone and Le Duc Phan on 05 September 2023.
Paratypes:VNUFR.2025.31 (Field No. Sonla01),VNUFR.2025.33 (Field No. Sonla03), all adult females andVNUFR.2025.34 (Field No. Sonla04), a subadult male, collected the same day and at the same locality as holotype. 
DiagnosisDiagnosis. Hemiphyllodactylus pakhaensis sp. nov. differs from its congeners by the combination of the following characters: a maximum SVL of 38.28 mm; trunk not particularly elongate (TrunkL/SVL ratio 0.50–0.52); eight or nine chin scales, distinct enlarged postmentals; three or four circumnasal scales; nine or 10 supralabial scales; eight or nine infralabial scales; 7–10 ventral scales; 13–18 dorsal scales; 3(4)–4–4–4 digital lamellae formula of forefoot (II–V) and 4–4(5)–4–4 of hindfoot (II–V); 17 or 18 precloacal pores and continuous series in males, 0–19 pitted precloacal scales in females; cloacal spur single in both sexes; enlarged subcaudal scales absent; dorsal surface of head grey, with bold dark markings; a distinct dark postnasal stripe extending to at least the base of the neck, uneven dark streaks running along the flanks and ending at the base of tail; a black streak on the anterior corner, extending below the eye to the lower jaw corner; a broad dark mid–dorsal; dorsolateral pale-colored spots on trunk becoming brown posteriorly; bold dark markings on dorsal surfaces of limbs; hind limbs with brown spots; a cream-colored V-shaped postsacral mark with anteriorly projecting arms; and unpigmented caecum and gonads. (Ha et al. 2026)


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Comment 
EtymologyThe specific epithetpakhaensisis a toponym referring to the type locality of the species. 
References
  • Ha HB, Hoang TT, Nguyen MD, Ha NV, Luu VQ 2026. A new species of Hemiphyllodactylus Bleeker, 1860 (Squamata, Gekkonidae) from Son La Province, Vietnam. ZooKeys 1268: 163-188 - get paper here
 
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