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Sitana visiri DEEPAK, 2016

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Higher TaxaAgamidae (Draconinae), Sauria, Iguania, Squamata (lizards)
Subspecies 
Common NamesE: Palm leaf fan-throated lizard 
SynonymSitana visiri DEEPAK in DEEPAK et al. 2016 
DistributionIndia (Tamil Nadu)

Type locality: Tuticorin, georeferenced latitude N 8.784993°, longitude E 78.156341°, Thoothukudi, Tamil Nadu state.  
Reproductionoviparous. Breeding males were observed during the month of September and October. Hatchlings were recorded during the month of January. 
TypesHolotype: NCBS AQ054, adult male, collected by V. Deepak and M. Kannan on 17 October 2013. Paratypes. CES 141163, adult male, BNHS 2310 adult female, Tuticorin, georeferenced latitude N8.784993°, longitude E78.156341°, Thoothukudi, Tamil Nadu state, collected by V. Deepak and M. Kannan on 17 October 2013.
 
DiagnosisDiagnosis: Sitana visiri sp. nov. can be distinguished from all the members of Sitana spinaecephalus clade in having a strongly serrated dewlap with extensive blue colouration and a large orange spot (Fig. 3G). Sitana visiri sp. nov. can be distinguished from Sitana ponticeriana, S. bahiri, and S. devakai in having proportionally larger dewlap that extends up to 56% of the length of the trunk (vs 46%, 29%, and 33%, respectively). Additionally Sitana visiri sp. nov. can be distinguished from the other four members of S. ponticeriana clade in having a large SVL; males (50.0 ± 5.2), females (48.5 ± 2.5) vs. S. ponticeriana males (40.5 ± 2.5), females (41.8 ± 4.6); S. bahiri males (40.5- 45.0), females (44.1-46.9); S. devakai males (40.0- 45.6), females (42.0-44.9). Details on morphometric data, scale counts and body ratios of select characters for multiple samples are given in Table 3, 7 and 8 in Deepak et al. 2016: 77, 90.
 
CommentDistribution: see map in Deepak et al. 2016: 80 (Fig. 8).

Habitat. coastal sand dunes, grassland habitats, Prosopis juliflora dominated areas, and grassland plains in the southern Tamil Nadu.

Sympatry: Eutropis carinata, Eutropis bibroni, and Calotes versicolor. 
EtymologyThe species epithet is derived from the regional Tamil language for a palm leaf fan, a hand crafted fan made from palm leaf. The dewlap of this species resembles a local palm leaf fan. 
References
  • DEEPAK, V.; AKSHAY KHANDEKAR, SANDEEP VARMA, R. CHAITANYA 2016. Description of a new species of Sitana Cuvier, 1829 from southern India. Zootaxa 4139 (2): 167–182 - get paper here
  • Deepak, V.; Varad B. Giri, Mohammad Asif, Sushil Kumar Dutta, Raju Vyas, Amod M. Zambre, Harshal Bhosale, K. Praveen Karanth 2016. Systematics and phylogeny of Sitana (Reptilia: Agamidae) of Peninsular India, with the description of one new genus and five new species. Contributions to Zoology 85 (1): 67-111 - 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
 
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