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Hemiphyllodactylus arakuensis AGARWAL, KHANDEKAR, GIRI, RAMAKRISHNAN & KARANTH, 2019

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Araku slender gecko 
SynonymHemiphyllodactylus arakuensis AGARWAL, KHANDEKAR, GIRI, RAMAKRISHNAN & KARANTH 2019 
DistributionIndia (Andhra Pradesh)

Type locality: Forest Rest House, Araku, Visakhapatnam District, Andhra Pradesh, India (18.326° N, 82.877° E, 940 m elevation).  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: CES (given as G 446, without explanation), adult male, collected on 2 March 2014 by Aparna Lajmi, V. Deepak and Aniruddha Datta-Roy. Paratypes: Five adult females (G 442–G 444, G 448–449), two adult males (G 445, G 447), have same collection data as holotype. 
DiagnosisDiagnosis: Hemiphyllodactylus arakuensis sp. nov. can be distinguished from other members of the genus by a combination of maxi- mum SVL of 39.0 mm; 8–11 chin scales; postmentals not enlarged; 9–12 SL; 9–12 IL; 13–16 dorsal scales and 7–9 ventral scales at mid-body contained within one longitudinal eye diameter; four or five subdigital lamellae on the first finger and five (rarely six) on toes; lamellar formula of manus 2222; lamellar formula of pes 2333/3333; males with eight or nine precloacal scales separated by 11–14 unpored scales from a series of two or three pore-bearing femoral scales on each thigh; no plate-like enlarged subcaudals; dark postorbital stripe and longitudinal markings on nape extending to fore- limb insertions; dorsal pattern of 7–9 irregular dark bands or strong reticulations, light paravertebral spots very fine if pres- ent; postsacral marking with light-coloured anteriorly projecting arms and belly stippled with black.

Comparisons: Hemiphyllodactylus arakuensis sp. nov. can be distinguished from Indian congeners by males having two or three pore- bearing femoral scales on each thigh (vs. 6–8 in Hemiphyllodactylus aurantiacus, six or seven in H. jnana and 8 in H. kolliensis), 7–9 ventral scales at mid-body contained within one longitudinal eye diameter (9–13 in H. aurantiacus, 11–15 in H. jnana and 10–13 in H. kolliensis) and lamellar formula of toes 2333 or 3333 (vs. 2222 in H. jnana and H. kolliensis). Major diagnostic characters across all Indian Hemiphyllodactylus species are scored in Table 1 in Agarwal et al. 2019. 
EtymologyThe specific epithet is a toponym for the type locality of the species, Araku. 
  • Agarwal, Ishan; Akshay Khandekar, Varad B. Giri & Uma Ramakrishnan 2019. The hills are alive with geckos! A radiation of a dozen species on sky islands across peninsular India (Squamata: Gekkonidae, Hemiphyllodactylus) with the description of three new species. Org Divers Evol - get paper here
  • Ganesh, S.R.; S. Bhupathy, P. Karthik, G. Babu Rao & S. Babu 2020. Catalogue of herpetological specimens from peninsular India at the Sálim Ali Centre for Ornithology & Natural History (SACON), India. JoTT 12 (9): 16123–16135 - get paper here
  • NGUYEN, TRUONG QUANG; QUYEN HANH DO, HANH THI NGO, ANH VAN PHAM,<br />CUONG THE PHAM, MINH DUC LE, & THOMAS ZIEGLER 2020. Two new species of Hemiphyllodactylus (Squamata: Gekkonidae) from Hoa Binh Province, Vietnam. Zootaxa 4801 (3): 513–536 - get paper here
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