It is endemic to the McPherson Range bordering New South Wales and Queensland, Australia.

[1][2] The specific name, tryoni, is in honor of English scientist Henry Tryon (1856–1943).

It has well-defined, dark transverse dorsal markings on light to mid-brown background.

[5] Silvascincus tryoni occurs in highland closed subtropical rainforest at elevations of 760–1,100 m (2,490–3,610 ft) above sea level.

[1] Specimens have been found on logs and rocks,[4] under decayed logs, and sunning at the base of a hollow giant stinging tree Dendrocnide excelsa.