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Calotes desilvai BAHIR & MADUWAGE, 2005

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Higher TaxaAgamidae (Draconinae), Sauria, Iguania, Squamata (lizards)
Common Names 
SynonymCalotes desilvai BAHIR & MADUWAGE 2005
Calotes desilvai — SOMAWEERA & SOMAWEERA 2009 
DistributionSri Lanka (Morningside Forest Reserve, elevation ca 1,080 m, and adjacent forest, at the eastern border of Sinharaja World Heritage Site)

Type locality: Morningside Forest, Eastern Sinharaja, Sri Lanka, 06°24’N, 80°36’E, elevation 1080 m.  
TypesHolotype: NMSL (= WHT) 1832 
DiagnosisDiagnosis: Calotes desilvai is distinguished from C. liolepis by having the fifth toe 42.6–47.0% of head length in males, 41.9–45.9% in females (vs. 31.0–39.5% and 33.0–40.5% respectively, in C. liolepis); bands on gular area distinct, black (vs. bands on gular area faint, brown); shoulder pit black (vs. shoulder pit cream white to brown); and scales on ventral surface of thigh smooth (vs. scales on the ventral surface of thigh carinate). Males of C. desilvai may also be distinguished from males of C. liolepis by their longer upper arm and femur (49.6–50.0 and 70.3–75.0% of head length, respectively) vs. shorter upper arm and femur (40.3–49.3 and 57.1–69.5%, respectively) and a comparatively short posterior supratympanic spine (1.7–2.7% of head length), longer in C. liolepis (3.1–12.9%). 
CommentAmong the Sri Lankan Calotes, the new species seems most closely related to C. liolepis Boulenger.

Rare and critically endangered in Sri Lanka (BAHIR & SURASINGHE 2005).

Abundance: only known from its original description (Meiri et al. 2017). 
EtymologyNamed after Anslem de Silva, founder of the Amphibia and Reptile Research Organisation (ARROS) and patron of herpetology in Sri Lanka for more than the past three decades. 
  • Amarasinghe, A. A. THASUN;, D. M. S. SURANJAN KARUNARATHNA, JAKOB HALLERMANN, JUNICHI FUJINUMA, HEINZ GRILLITSCH & PATRICK D. CAMPBELL 2014. A new species of the genus Calotes (Squamata: Agamidae) from high elevations of the Knuckles Massif of Sri Lanka. Zootaxa 3785 (1): 059–078 - get paper here
  • Amarasinghe, A.A. Thasun; D.M.S. Suranjan Karunarathna, and J. Fujinuma 2014. A New Calotes Species from Sri Lanka with a Redescription of Calotes liolepis Boulenger, 1885. Herpetologica 70 (3): 323-338 - get paper here
  • Bahir, M.M. & K. P. Maduwage 2005. Calotes desilvai, a new species of agamid lizard from Morningside Forest, Sri Lanka. Raffles Bull. Zool., Suppl. No. 12: 381-392 - get paper here
  • Bahir, M.M. & T. Surasinghe 2005. A conservation assessment of the Sri Lankan Agamidae (Reptilia: Sauria). Raffles Bull. Zool., Suppl. No. 12: 407-412 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • JANZEN, P. 2021. Morningside – ein herpetologisches Highlight Sri Lankas. Sauria 43 (1): 9-37 - get paper here
  • Manthey U 2008. Agamid lizards of Southern Asia, Draconinae 1. Terralog 7, 160 pp.
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Samarawickrama, V.A.M.P.K.; H.I.G.C. Kumara, D.R.N.S. Samarawickrama 2019. Diversity of Reptiles in the Eastern and Southern parts of the Sinharaja Rain Forest. Journal of Tropical Forestry and Environment - get paper here
  • Somaweera, R. & Somaweera, N. 2009. Lizards of Sri Lanka: a colour guide with field keys. Chimaira, Frankfurt, 304 pp.
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