Lankascincus dorsicatenatus, also known as the catenated lankaskink, is a species of skink, a lizard in the family Scincidae. The species is endemic to island of Sri Lanka.
L. dorsicatenus was originally placed in the “wastebasket taxon” Sphenomorphus, but was later moved to the genus Lankascincus, which is a genus of skinks endemic to Sri Lanka.
L. dorsicatenatus is found in southwestern Sri Lanka, the wet zone.
The preferred natural habitat of L. dorsicatenatus is forest.
L. dorsicatenatus is oviparous. Clutch size is one egg.