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Hemiphyllodactylus dupanglingensis ZHANG, QIAN & YANG, 2020

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Dupangling Slender Gecko
Chinese: 都庞岭半叶趾虎 (Du Pang Ling Ban Ye Zhi Hu) 
SynonymHemiphyllodactylus dupanglingensis ZHANG, QIAN & YANG in ZHANG et al. 2020: 186 
DistributionChina (Hunan, likely in neighboring Guangxi)

Type locality: Hunan Dupangling National Nature Reserve (25°34'23.23" N, 111°23'21" E; 437 m a.s.l.) (Figure 2 in Zhang et al. 2020).  
TypesHolotype. CSUFT 00402 (Central South University of Forestry and Technology, Changsha, Hunan, China), adult male collected by Benjun WANG on 10 August 2018.
Paratypes. CSUFT 00403, 00404, 00405, three adult males, were collected by Benjun WANG from August to September 2018 in Hunan Dupangling National Nature Reserve (25°34'23.23" N, 111°23'21" E; 437 m a.s.l.). CSUFT 00401, one adult female, and CSUFT 00406, one adult male, were collected by Bing ZHANG and Jifu ZHOU on August 21, 2019, in Hunan Dupangling National Nature Reserve (25°34'23.23" N, 111°23'21" E; 437 m a.s.l.) (Figure 3). 
DiagnosisDiagnosis: Hemiphylodactylus dupanglingensis sp. nov. can be distinguished from all its congeners by a combination of following characters: (1) bisexual, presence of both males and females; (2) medium body size (SVL 39.4–44.7 mm in adult males, 40.8 mm in one adult female); (3) 9–11 chin scales; (4) postmental scales enlarged; (5) 3–4 circumnasal scales; (6) 2–3 scales between internasals; (7) 9–12 infralabials, 11–14 supralabials; (8) 14–16 dorsal scales and 10–11 ventral scales longitudinally arranged at midbody contained with one eye diameter; (9) a manual lamellar formula of 4-5-5-4 (n = 1) or 4-4-5-4 (n = 4), a pedal lamellar formula of 4-5-5-5 (n = 4) or 5-6-6-4 (n = 1); (10) four or five subdigital lamellae on first finger and first toe; (11) 21–25 continuous precloacal and femoral pores in males; (12) cloacal spurs 1–2; (13) no enlarged subcaudal scales; (14) dark transverse blotches on dorsal; (15) dark postorbital stripe present; (16) a linear series of white spots present on flank; (17) postsacral marking lack anterior projecting arms; and (18) pigmented gonadal tracts and caecum (Zhang et al. 2020).

Coloration in life. (based on the paratype, CSUFT 401, adult female: Figure 4). Lateral view of head, presence of a white line beginning at loreal region through orbital to the back of the head, which gets thinner at neck and extends to dorsolateral. Two lines separated by some black-centered yellow pigments in the middle of the head front. Two dark postorbital lines present at edge of the white line. Iris copper red with brown reticulations, and pupil vertical with four black spots linked by black lines.
Dorsal color light yellow with dark reticulation transverse stripes starting behind the head and ending at postsacral marking; postsacral marking pale buff, chevron shaped; a series of light spots present on both sides on dorsalateral; fingers a nd toes are light yellow with black pigmentation on dorsal.
Ventral view of body and limbs pinkish white with light yellow edge ventral scales, and dense black dots present on each scale; gonadal tracts and caecum pigmented. Ventral view of tail orange (Zhang et al. 2020).

Variation. Measurements a re shown in Ta ble 1. Specimens va ry in scale counts, subdigital la mella r, number of precloacal a nd femoral pores a nd body size. All recognized specimens sha re the sa me 2–5FingLm 4–4–5–4 except CSUFT 00401 (4–5–5–4). All recognized specimens sha re the sa me 2–5ToeLm 4-5-5-5 except CSUFT 00404 (5–6–6–4). Specimen CSUFT 00403 shows a different dorsal color pa ttern. Instead of dark transverse bars, light paler irregular veins distributedon th e dorsal of the head a nd body. Darker coloration on flanks extends from under-eye area to anterior portion of forefoot, with small white dots on flanks (Zhang et al. 2020).

Comparisons. We show the diagnostic characters sepa rating H. dupanglingensis sp. nov. with all named species of Hemiphyllodactylus (Ta ble S3). We compared this species with eight closely related species (H. banaensis, H. dushanensis, H. hongkongensis, H. huishuiensis, H. kiziriani, H. serpispecus, H. yunnanensis, a nd H. zugi) (Ta ble 2). Hemiphyllodactylus dupanglingensis sp. nov. can be differentia ted from its eight closely rela ted species by a combina tion of the following cha racters: maximum SVL 44.7 mm (vs. > 50 mm in H. dushanensis, H. huishuiensis, and H. banaensis); chin scales 9–11 (vs. < 9 in H. hongkongensis); internasal scales two or three (vs. 4–11 in H. banaensis); dorsal scales 14–16 (vs. > 16 in H. banaensis, H. kiziriani, H. serpispecus, and H. zugi); ventral scales 10 or 11 (vs. > 11 in H. zugi and < 10 in H. dushanensis, and H. huishuiensi); total la mellae on ha nd 17 or 18 (vs. <17 in H. hongkongensis, H. kiziriani, H. serpispecus, H. yunnanensis, and H. zugi); total lamellae on foot 19–21 (vs. <19 in H. hongkongensis, H. kiziriani, H. serpispecus, and H. yunnanensis); subdigital lamellae on the first finger four or five (vs. <4 in H. huishuiensis); subdigital lamellae on the first toe four or five (vs. <4 in H. huishuiensis); and continuous precloacal and femoral pores 21–25 (vs. <21 in H. huishuiensis) (Zhang et al. 2020). 
EtymologyThe scientific name “dupanglingensis” is derived from its type locality Dupangling in Huna n province 
  • GAO, ZHIWEI; TIANYU QIAN, JIANPING JIANG, DEJIA HOU, XUEJIAN DENG & DAODE YANG. 2022. Species diversity and distribution of amphibians and reptiles in Hunan Province, China. Biodiversity Science 30 (2): 21290, 1–15 - get paper here
  • ZHANG, Bing; Tianyu QIAN; Xiangjin JIANG; Bo CAI; Xuejian DENG and Daode YANG 2020. A New Species of Hemiphyllodactylus Bleeker, 1860 (Reptilia: Squamata) from Hunan Province, China. Asian Herpetological Research 11 (3): 183–193; DOI: 10.16373/j.cnki.ahr.190066 - get paper here
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