coastal dune communities of the Roe Plain

Stygofauna various spp

If the slopes of the Hampton escarpment are included in the region, high levels of endemism are found in stygofauna of karst systems that extend back under the NUL2 sub-region

Dispersal mechanisms between individual aquifer systems are limited, and faunas have evolved in isolation (e.g. Tartarus mullamullangensis, Tartarus nurinensis

A variety of coastal dune plants also occur nowhere else: Scaevola crassifolia, Atriplex cinerea and Euphorbia paralais

Coastal dunes of the region support three endemic reptile species (Pseudemoia baudini Lerista arenicola and L. baynesi) and one endemic sub-species of reptile (Ctenotus brooksi euclae).

Extensive karst features including underground network of caves, blowholes and subterranean streams

The limestone caves of the Eucla Basin are one of the largest karst systems in the world

A unique styofauna and a number of threatened invertebrates (Gondwanan relicts), sub-fossil remains

Karst features provide refugia for a largely unknown fauna.