Critically endangered
7 species| Photo | English | සිංහල | தமிழ் | Scientific name | IUCN | Endemic |
|---|---|---|---|---|---|---|
| Rajakaruna’s Round-Eyed Gecko | — | — | Cnemaspis rajakarunai | CR | — | |
| Rammale Round-Eyed Gecko | — | — | Cnemaspis rammalensis | CR | Endemic | |
| Ratnapura Shadowdamsel | — | — | Ceylonosticta mirifica | CR | Endemic | |
| Retigala Round-Eyed Gecko | — | — | Cnemaspis retigalensis | CR | — | |
| Roshan Perera’s Shieldtail | — | — | Rhinophis roshanpererai | CR | Endemic | |
| Rough-Bellied Round-Eyed Gecko | — | — | Cnemaspis tropidogaster | CR | Endemic | |
| Rupasinghe’s Shadowdamsel | — | — | Ceylonosticta rupasinghe | CR | Endemic |
