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Eutropis dawsoni (ANNANDALE, 1909)

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Higher TaxaScincidae, Mabuyinae (Mabuyini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Gans’ grass skink 
SynonymLygosoma dawsoni ANNANDALE 1909: 257
Mabuya gansi DAS 1991
Eutropis gansi — MAUSFELD et al. 2002
Eutropis gansi — BATUWITA 2016
Eutropis dawsoni — GANESH et al. 2021
Eutropis gansi — LINDKEN et al. 2024 
DistributionS India (Tamil Nadu, Kerala)

Type locality: Maddathorai (= Madathara), Shashthamcottah and Tenmalai, Kerala

gansi: Type locality: 2 km NW of Muthalar Road Cross off Sengaltheri-Thalayanai road (towards Moolakasam), Kalkkad Tiger Reserve, Tirunelveli district, Tamil Nadu State, India.  
Reproduction 
TypesLectotype: ZSI 16170 and paralectotypes ZSI 16140, 16171 of Lygosoma dawsoni Annandale, 1909.
Holotype: ZSI 24826 [gansi] 
DiagnosisDiagnosis: A relatively larger species of Eutropis (adult SVL 61 mm) from the Southern Western Ghats, characterised by: a fairly robust and cylindrical body with well-developed limbs; dorsal scales with 5-6 strong keels with 3 pointed spurs projecting behind; post-nasal absent; supra-nasals and pre-frontals separated; fronto-parietals are in contact with each other; inter-parietal completely separating parietals; one pair of broad nuchals; temporal scales with 3-4 keels; ear-hole as large as lateral scale with 3-4 short, pointed anterior lobules; lower eyelids scaly with a series of opaque scales; mid-ventrals: 39-45; 4th toe subdigital lamellae: 14-16; dorsum dark grey-brown without any spots; dark grey-brown lateral stripe extending from posterior corner of eye to a little behind hind limbs (Ganesh et al. 2021).


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CommentSynonymy: Eutropis dawsoni has been considered a synonym of Eutropis (or Mabuya) macularia at least since Smith 1935, but revalidated by Ganesh et al. 2021. See also Eutropis macularia. Ganesh et al. 2021 synonymized gansi with dawsoni.

Etymology: E. gansi was named after Carl Gans (1923-2009), German-born American herpetologist. See Adler et al. 2010 for obituaries. 
EtymologyE. dawsoni was named after Lieut.-Col. F.W. Dawson, the then Director of Trivandrum Museum, with whom Annandale conducted the expedition on which he found this species. 
References
  • Annandale, N. 1909. Report on a small collection of lizards from Travancore. Records of the Indian Museum 3: 253-257 - get paper here
  • Batuwita, Sudesh 2016. Description of Two New Species of Eutropis (Reptilia: Scincidae) from Sri Lanka with a Redescription of Eutropis madaraszi (Méhely). Journal of Herpetology 50 (3): 486-496. - get paper here
  • Das I. 1991. A new species of Mabuya from Tamil Nadu State, Southern India (Squamata: Scincidae). Journal of Herpetology 25 (3): 342-344. - get paper here
  • Ganesh, S. R.; Kaushik Deuti, N. S. Achyuthan, Patrick Campbell, Sujoy Raha, Probhat Bag and Sudipta Debnath 2021. Taxonomic reassessment of Eutropis macularia (Blyth, 1853) complex in the Western Ghats of India: Resurrection of Eutropis brevis (Günther, 1875), Eutropis dawsoni (Annandale, 1909) and synonymisation of Eutropis gansi (Das, 1991) (Reptilia: Squamata: Scincidae). Rec. zool. Surv. India 121(3): 363–374 - get paper here
  • Mausfeld, Patrick; Andreas SCHMITZ; Wolfgang BÖHME; Bernhard MISOF; Davor VRCIBRADIC; Carlos Frederico Duarte ROCHA 2002. Phylogenetic Affinities of Mabuya atlantica Schmidt, 1945, Endemic to the Atlantic Ocean Archipelago of Fernando de Noronha (Brazil): Necessity of Partitioning the Genus Mabuya Fitzinger, 1826 (Scincidae: Lygosominae). Zool. Anz. 241: 281–293 - get paper here
 
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