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Ristella
''Ristella'' is a genus of skinks endemic to southern India, which are commonly known as cat skinks because of their retractile claws. ==Description== Palatine and pterygoid bones in contact on the median line of the palate, which is toothless;palatine notch small, far behind, corresponding to the posterior notch of the tongue. Teeth conical. Eyelids well developed, scaly. Ear-opening distinct. Nostril pierced in a single nasal; no supranasals; prefrontals small or coalesced; frontoparietals and interparietal distinct. Limbs well developed, anterior with 4, posterior with 5 digits; claws completely retractile into a large compressed sheath formed of one large scale cleft beneath.〔Boulenger GA. 1890. ''The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia.'' London: Secretary of State for India in Council. (Taylor and Francis, printers). xviii + 541 pp. (Genus ''Ristella'', p. 214).〕 ==Geographic range== Found in the hill-tracts of southern India.〔
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