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Cnemaspis alwisi MENDIS WICKRAMASINGHE & MUNINDRADASA, 2007

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesE: Alwis’s day gecko
Sinhala: Alwisge diva huna
Tamil: Alwisin pahal palli 
SynonymCnemaspis alwisi MENDIS WICKRAMASINGHE & MUNINDRADASA 2007
Cnemaspis alwisi — MANAMENDRA-ARACHCHI et al. 2007 
DistributionSri Lanka (Retigala and Maragala mountains, Nilgala area)

Type locality: Dolukanda, Kurunegala, Sri Lanka, (N 07° 37’ 07.8” E 80° 24’ 50.3”, elevation 152m). Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: NMSL 2004.9.1, Adult male, 39.92 mm SVL, 23.12.2003, collected by L . J. Mendis Wickramasinghe and D. A. I. Munindradasa. 
CommentDiagnosis. A medium-sized Cnemaspis (snout to vent length 33–40 mm in adults), which can be distin guished from all known congeners by the following combination of characters: Postmentals separated by a small scale; nostrils are not in contact with first supralabial; 15 supra labials to angle of mid-orbit position and end of jaw at nine supra labials; 32 interorbitals; throat scales smooth; dorsal tubercles 90–92 small, rounded, pentagonal or hexagonal; absence of groups of carinated large scales in dorsal body; spine-like tubercles absent on flanks; 28 midventrals; ventral scales smooth and imbricate; mid-subcaudals large; no pre anal pores; 7–8 femoral pores on each side; 13 subdigital lamellae and 3 basal lamellae in the 4th finger; 15 subdigital lamellae and 3 basal lamellae in the 4th toe; segmented tail; dorsal part of tail with flushed and smooth scales, rarely intermixed with large semicircular prominent tubercles.
C. alwisi sp. nov. is congener with C. ranwellai and C. scalpensis from morphological characters. However, C. alwisi can easily be distinguished from both by having two internarsals and low count of lamella in forth finger and toe, and femoral pores, and from C. ranwellai by the separated postmental (more than 90% of C. ranwellai population in the type locality shows contacted postmental), the dorsal tubercle count and ventral scale count, and from C. scalpensis by the intraorbital count, dorsal tubercle count and ventral count, and also from the morphometric analysis.

Group: The C. alwisi group (4 species: Cnemaspis alwisi, C. punctata, C. rammalensis, and C. rajakarunai sp. nov.) is characterized by femoral pores present and precloacal pores absent, mid subcaudal scales extremely large, and abdominal scales smooth (Wickramasinghe et al. 2016). 
EtymologyThe species is an eponym in the Latin genitive singular honouring Lyn De Alwis, for his initiative in igniting a research culture in the country leading to Conservation of Wildlife resources. 
References
  • Barts, M. 2007. Sechs neue Taggeckos aus der Gattung Cnemaspis. Draco 7 (30): 93-96 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA
  • Karunarathna, Suranjan; D. M. S. and A. A. Thasun Amarasinghe 2011. A PRELIMINARY SURVEY OF THE REPTILE FAUNA IN NILGALA FOREST AND ITS VICINITY, MONARAGALA DISTRICT, SRI LANKA. Taprobanica 3 (02): 69-76
  • Manamendra-Arachchi, Kelum; Batuwita, Sudesh & Pethiyagoda, Rohan 2007. A taxonomic revision of the Sri Lankan day-geckos (Reptilia: Gekkonidae: Cnemaspis), with description of new species from Sri Lanka and southern India. Zeylanica 7 (1): 9-122
  • Somaweera, R. & Somaweera, N. 2009. Lizards of Sri Lanka: a colour guide with field keys. Chimaira, Frankfurt, 304 pp.
  • VIDANAPATHIRANA, DULAN RANGA; M. D. GEHAN RAJEEV, NETHU WICKRAMASINGHE, SAMANTHA SURANJAN FERNANDO & L. J. MENDIS WICKRAMASINGHE & L. J. MENDIS WICKRAMASINGHE 2014. Cnemaspis rammalensis sp. nov., Sri Lanka’s largest day-gecko (Sauria: Gekkonidae: Cnemaspis) from Rammalakanda Man and Biosphere Reserve in southern Sri Lanka. Zootaxa 3755 (3): 273–286
  • WICKRAMASINGHE, L. J. MENDIS; DULAN RANGA VIDANAPATHIRANA, R. M. GAYAN PRIYANKARA RATHNAYAKE 2016. Cnemaspis rajakarunai sp. nov., a rock dwelling day-gecko (Sauria: Gekkonidae: Cnemaspis) from Salgala, an unprotected lowland rainforest in Sri Lanka. Zootaxa 4168 (1): 092–108
  • Wickramasinghe, L.J. MENDIS; & D. A. I. MUNINDRADASA 2007. Review of the genus Cnemaspis Strauch, 1887 (Sauria: Gekkonidae) in Sri Lanka with the description of five new species. Zootaxa 1490: 1-63 - get paper here
 
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