Zoological Survey of India lists 62 species of skinks

A recent publication by the Zoological Survey of India (ZSI) reveals that India is home to 62 species of skinks and says about 57% of all the skinks found in India (33 species) are endemic.


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What are Skinks?

  • With long bodies, relatively small or no legs, no pronounced neck and glossy scales, skinks are common reptiles around homes, garages, and open spaces such as sparks and school playgrounds, and around lakes.
  • Although they are common reptiles and have a prominent role in maintaining ecosystems, not much is known about their breeding habits, and ecology because identification of the species can be confusing.
  • Skinks are highly alert, agile and fast moving and actively forage for a variety of insects and small invertebrates.
  • Certain skinks have green blood. Unique color of the blood is result of accumulation of the green, bile pigment called
  • The reduced limbs of certain skink species or the complete lack of them make their slithering movements resemble those of snakes, leading people to have incorrect notion that they are venomous.
    • This results in several of these harmless creatures being killed.

Key-highlights of the Publication

  • The publication is a result of four years of work and study of over 4,000 specimens in all 16 regional centres of ZSI and also at the Bombay Natural History Society, Indian Institute of Science, Wildlife Institute of India, and the Salim Ali Centre for Ornithology & Natural History.
  • It also makes an attempt to ‘redescribe’ all the 62 species with their taxonomic identification keys, distributional maps, habits, habitat and breeding biology.
  • The book also gives a phylogenetic and bio-geographical analysis of distribution of these species in all the 11 bio-geographic zones of India and a detailed account on the historical studies on this group of lizards from the British era to the present.
Distribution of Skinks : With 1,602 species of skinks across the world, making it the largest family of lizards, their occurrence in India is less than 4 % of the global diversity.
Western Ghats: The Western Ghats are home to 24 species of which 18 are endemic to the region.
Deccan Peninsular region: The Deccan Peninsular region is home to 19 species of which 13 are endemic.
Northeast: There are records of 14 skink species from the northeast of which two species are endemic.

Endemic Species

  • Of the 16 genera of skinks found in India, four genera are endemic.
    • Sepsophis (with one species)and Barkudia (with two species) are limbless skinks found in the hills and coastal plains of the eastern coast. 
    • Barkudia insularisis believed to be found only in the Barkud Island in Chilka lake in Odisha. 
    • Barkudia melanosticta is endemic to Visakhapatnam. 
    • Sepsophis punctatus is endemic to the northern part of Eastern Ghats.
  • Five species of Kaestlea (blue-tailed ground skinks) are endemic to the Western Ghats and four species of Ristella (Cat skinks) also endemic to the southern part of Western Ghats.

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