Liopholis aputja

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Central Ranges rock-skink
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Liopholis
Species:
L. aputja
Binomial name
Liopholis aputja
Farquhar et al, 2024 [1]

Liopholis aputja, also known as the Central Ranges rock-skink, is a species of skink, a lizard in the family Scincidae. The species is endemic to central Australia.

Contents

Etymology

The specific epithet aputja means “of the hills” in the Pitjantjatjara and Yankunytjatjara dialects of the Western Desert language spoken within the species' range, with reference to its preferred habitat. [1]

Discovery

The species was described following a scientific collecting expedition by Monash University researchers to the Aṉangu Pitjantjatjara Yankunytjatjara (APY) lands of north-western South Australia, where the team worked with the traditional owners, being assisted by the Anangu Rangers with local knowledge and by access to particular sites. [2]

Taxonomy

The holotype was collected in Alalkanya Gorge, 13 km north of Pukatja in the eastern Musgrave Ranges, in 2005. The species was described in 2024. Following morphological and molecular analysis, Liopholis aputja was split from its closest congener Liopholis margaretae . The degree of genetic divergence between the two taxa indicates genetic separation took place during the aridifying environmental conditions of the Late Miocene.

Description

The Central Ranges rock skink is a moderately large and robust Liopholis species, with a snout–vent length (SVL) of up to 135 mm and a tail length up to 158 mm. The back, sides, limbs and tail are coloured dull orangish-brown with thin black scale margins, with the top and sides of the head a more vibrant orangish shade. There are also distinctive arrangements of the supraciliary scales and ear lobules on the head. [1] [2]

Distribution and habitat

Both L. margaretae and L. aputja are found in central Australia. However, the former appears to be largely confined to the MacDonnell Ranges bioregion of the southern Northern Territory, while L. aputja is only known from the Mann-Musgrave Ranges of the Central Ranges bioregion of north-western South Australia and extreme south-western Northern Territory. The two bioregions are separated by Lake Amadeus and other salt lakes in the Amadeus Basin, which form a 180 km biogeographical barrier affecting rock-dwelling fauna. L. aputja also appears to favour higher elevations in rocky country, with other local Liopholis species preferring sandplain habitats. [1]

Behaviour

L. aputja constructs burrow systems in the soil beneath rocks and into soil-filled rock crevices. It is mainly diurnal but is sometimes active at night in hot weather. [1]

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References

  1. 1 2 3 4 5 Farquhar, JE; Mulder, J; Russell, W; Haines, ML; Anangu Rangers; Chapple, DG (2024-11-01). "A new species of rock skink (Scincidae: Liopholis) from the Central Ranges bioregion of arid Australia". Zootaxa. 5536 (1): 153–177. doi:10.11646/zootaxa.5536.1.6 . Retrieved 2024-11-11.
  2. 1 2 Allison, Charmayne; Stimpson, Lara (2024-11-09). "Monash University scientists, Aboriginal rangers discover lizard species in Central Australian desert". ABC News. Australian Broadcasting Corporation. Retrieved 2024-11-11.