Critically endangered
4 species| Photo | English | සිංහල | தமிழ் | Scientific name | IUCN | Endemic |
|---|---|---|---|---|---|---|
| Dayawansa’s Shrub Frog | — | — | Pseudophilautus dayawansai | CR | Endemic | |
| De Silva’s Rough-Sided Snake | — | — | Aspidura desilvai | CR | Endemic | |
| Deignan Tree Skink | — | — | Lankascincus deignani | CR | Endemic | |
| Dumbara Corrugated Frog | — | — | Lankanectes pera | CR | Endemic |
