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Lankascincus deignani (TAYLOR, 1950)

IUCN Red List - Lankascincus deignani - Endangered, EN

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Higher TaxaScincidae, Sphenomorphinae (Ristellidae), Scincoidea, Sauria, Squamata (lizards) 
Subspecies 
Common NamesDeignan Tree Skink 
SynonymSphenomorphus deignani TAYLOR 1950
Lankascincus deignani — GREER 1991
Lankascincus deignani — DAS 1996: 46
Sphenomorphus deignani — DAS 1996: 48
Lankascincus deignani — AUSTIN et al. 2004
Lankascincus deignani — BATUWITA 2019: 229 
DistributionSri Lanka (forests around Kandy)

Type locality: Mount Gannoruwa (Gangarowa ?), Peradeniya, Kandy District, Ceylon.  
Reproductionoviparous 
TypesHolotype: USNM 120326 
DiagnosisDiagnosis. Distinguished from all other Lankascincus by the following combination of characters: prefrontals in contact; pre- frontal wider than long; frontonasal as large as prefrontals together; frontoparietals two; supraciliaries 9–10; primary temporal one; secondary temporals two, in contact; supra- labials seven; last supralabial subequal to the preceding supralabial; postsupralabials two; paravertebrals 43–48; ventral scales 55–57; transverse scale rows across mid- body 28; subdigital lamellae under fourth digit of pes 19–20; maximum SVL 58.0 mm; body color reddish brown; ventral side yellowish brown; lacking a dorsolateral stripe in male; lacking subocular spot; forelimb length 21.8–25.9% of SVL; and hind-limb length 29.1–34.5% of SVL (Batuwita 2019: 229).

Comparisons. Lankascincus taprobanensis: prefrontals widely separated and six supralabials; L. fallax: two primary temporals and 15–18 subdigital lamellae under fourth digit of pes; L. megalops: last supralabial smaller than the preceding supralabial and secondary temporals sepa- rated; L. dorsicatenatus: last supralabial smaller than the preceding supralabial and secondary temporals separated; L. taylori: single supradigital scale row, adpressed limbs non overlapping, and 11–15 subdigital lamellae under fourth digit of pes; L. gansi: last supralabial smaller than the preceding supralabial and secondary temporals sepa- rated; L. sripadensis: 51–55 paravertebral scales, dark-brown to black overall body coloration; and L. greeri: adpressed limbs greatly overlapping and subocular pale spot (Batuwita 2019: 232). 
CommentDistribution: Previous records of L. deignani from Nuwaraeliya and surrounding localities were reidentified as L. sripadensis by Butawita 2019. 
Etymology 
References
  • Austin, C.C.; Das, I. & De Silva, A. 2004. Higher-level molecular phylogenetic relationships of the endemic genus Lankascincus from Sri Lanka based on nuclear DNA sequences. Lyriocephalus 5 (1-2): 11-22 [special issue] - get paper here
  • Batuwita, Sudesh 2019. A REVIEW OF THE LIZARDS OF THE ENDEMIC GENUS LANKASCINCUS (REPTILIA: SCINCIDAE: LYGOSOMINAE) FROM SRI LANKA. Bulletin of the Museum of Comparative Zoology 162(3), (8 April 2019) - get paper here
  • Batuwita, Sudesh and Rohan Pethiyagoda 2007. Description of new species of Sri Lankan Litter Skink (Squamata: Scincidae: Lankascincus). Ceylon Journal of Science (Bio. Sci.) 36(2):80-87
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Greer A E 1991. Lankascincus, a new genus of scincid lizards from Sri Lanka, with descriptions of three new species. Journal of Herpetology 25 (1): 59-64 - get paper here
  • Somaweera, R. & Somaweera, N. 2009. Lizards of Sri Lanka: a colour guide with field keys. Chimaira, Frankfurt, 304 pp.
  • Taylor, Edward H. 1950. Ceylones lizards of the family Scincidae. Univ. Kansas Sci. Bull. 33 (2): 481-518 - get paper here
  • Wickramasinghe, L.J. MENDIS; Rodrigo, R.; Dayawansa, N. & Jayantha, U.L.D. 2007. Two new species of Lankascincus (Squamata: Scincidae) from Sripada Sanctuary (Peak Wilderness), in Sri Lanka. Zootaxa 1612: 1–24 - get paper here
 
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