| Lake Pedder planarian | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Tricladida |
| Family: | Dugesiidae |
| Genus: | Romankenkius |
| Species: | R. pedderensis |
| Binomial name | |
| Romankenkius pedderensis Ball, 1974 | |
TheLake Pedder planarian (Romankenkius pedderensis) is a species ofinvertebrate in the familyDugesiidae.[2] This species was gregarious within the aquatic community of the lake before it flooded, living alongside small fish and invertebrates such as thePedder galaxias andLake Pedder earthworm.[3]

The species isendemic to theLake Pedder area inTasmania, Australia. This species has been listed as extinct by theIUCN Red List of Threatened Species since 1986, although their last conservation assessment was dated 1996.[1] Live specimens of this species were collected in 2006[4][failed verification] and the ongoing existence of the species was again confirmed in 2012.[5]