Egernia arnhemensis Sadlier, 1990 Hortonia obiri, Wells & Wellington, 1985 The Arnhem Land Gorges skink (Bellatorias obiri) is a species of skink, a lizard in the family Scincidae.

The species is native to Arnhem Land in the Northern Territory.

[2] The Arnhem Land Gorges skink was first noted to be distinct in 1974 by Harold Cogger, who called it Egernia cf.

[3] Australian herpetologists Richard W. Wells and C. Ross Wellington described Hortonia obiri in 1985 from a specimen in the Northern Territory Museum in Darwin that had been collected 3 km southwest of Gunbalanya (formerly known as Oenpelli) by Brian Jukes on 28 July 1975.

[4] Ross Sadlier called it Egernia arnhemensis in 1990.