Species
60 species| Photo | English | සිංහල | தமிழ் | Scientific name | IUCN | Endemic |
|---|---|---|---|---|---|---|
| Whitecheek Monocle Bream | — | — | Scolopsis vosmeri | LC | — | |
| Whitespotted Frillgoby | — | — | Bathygobius coalitus | LC | — | |
| Whitespotted Guitarfish | — | — | Rhynchobatus australiae | CR | — | |
| Whitespotted Whipray | — | — | Maculabatis gerrardi | EN | — | |
| Whitetail Damsel | — | — | Pomacentrus chrysurus | LC | — | |
| Wijaya’s Scissortail | — | மைக்ரோகோம்பஸ் வைஜயா | Microgomphus wijaya | VU | Endemic | |
| Wild Boar | වල් ඌරා | காட்டுப்பன்றி | Sus scrofa | LC | — | |
| Willey’s Earth Snake | — | — | Rhinophis porrectus | EN | Endemic | |
| Wilson’s Storm-Petrel | — | வில்சன் கடற் குருவி | Oceanites oceanicus | LC | — | |
| Wirenet Filefish | — | — | Cantherhines pardalis | LC | — | |
| Wood Sandpiper | — | பொரி உள்ளான் | Tringa glareola | LC | — | |
| Woodhouse’s Four Lineblue | — | — | Nacaduba ollyetti | Endemic |
