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The vast and largely unexplored biodiversity of Australia’s Northern Territory continues to yield remarkable discoveries. Scientists from the Australian Wildlife Conservancy (AWC), in collaboration with research partners, have announced the formal identification of a new reptile species: a secretive, sand-dwelling skink officially named Lerista munuwajarlu, or the Gulf Coastal Slider.
This unique reptile was discovered at AWC’s Pungalina-Seven Emu Wildlife Sanctuary, a critical conservation area in the Gulf of Carpentaria. The journey to naming the species was long—the first specimen was collected a decade ago, but only recent targeted surveys confirmed it as a species new to science. The find underscores the importance of ongoing field herpetological surveys in poorly-surveyed regions.
What makes L. munuwajarlu particularly interesting to the herpetoculture community is its fascinating morphology. It is a type of ‘slider skink,’ a burrowing lizard that has undergone a dramatic evolutionary reduction in its limbs, adapting perfectly to a subterranean lifestyle. The species name itself is derived from the local Garrwa language, with munuwa meaning ‘no’ and jarlu meaning ‘arm,’ in recognition of its unique trait of having no forelimbs and possessing only two toes on each of its reduced hindlimbs.
The discovery of Lerista munuwajarlu reinforces that even in well-studied groups like Australian reptiles, significant cryptic biodiversity remains. For responsible herpetoculturists, this find highlights the value of supporting conservation organizations like the AWC, whose sanctuary management is vital to protecting these unique and often highly localised endemic species before they are even fully documented.
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