Silvascincus tryoni

Silvascincus tryoni, the Border Ranges blue-spectacled skink or forest skink, is a species of lizard in the family Scincidae. It is endemic to the McPherson Range bordering New South Wales and Queensland, Australia.[1][2]

Silvascincus tryoni
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Silvascincus
Species:
S. tryoni
Binomial name
Silvascincus tryoni
(Longman, 1918)
Synonyms[2]
  • Lygosoma (Hinulia) tryoni Longman, 1918
  • Sphenomorphus tryoni — Bustard, 1964
  • Eulamprus tryoni — Sadlier, 1998; Cogger, 2000; Wilson & Swan, 2010
  • Silvascincus tryoni — SKINNER et al. 2013

Etymology

The specific name, tryoni, is in honor of English scientist Henry Tryon (1856–1943).[3]

Description

This species can grow to 104 mm (4.1 in) in snout–vent length. It has well-defined, dark transverse dorsal markings on light to mid-brown background.[4]

Reproduction

Silvascincus tryoni is viviparous. A female measuring 100 mm (3.9 in) in snout–vent length and 189 mm (7.4 in) in total length gave birth to five young measuring 33–35 mm (1.3–1.4 in) in snout–vent length.[5]

Habitat and conservation

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.[5] When disturbed, they seek refuge under rocks and logs.[4]

Silvascincus tryoni might be at least locally common. Its range is small but coincides, perhaps entirely, with protected areas, including Lamington and Border Ranges National Parks. It is unlikely to be facing any major threats.[1]

References
  1. Sanderson, C.; Wilson, S.; Shea, G. & Hobson, R. (2019). "Eulamprus tryoni (amended version of 2018 assessment)". IUCN Red List of Threatened Species. 2019: e.T178290A144951358. Retrieved 17 April 2020.
  2. Silvascincus tryoni at the Reptarium.cz Reptile Database. Accessed 17 April 2020.
  3. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Eulamprus tryoni, p. 268).
  4. Sadlier, R.A. (1998). "Recognition of Eulamprus tryoni (Longman), a scincid lizard endemic to the McPherson Ranges of eastern Australia". Memoirs of the Queensland Museum. 42 (2): 573–578.
  5. Bustard, H. Robert (1964). "Reproduction in the Australian rain forest skinks, Siaphos equalis and Sphenomorphus tryoni". Copeia. 1964 (4): 715–716. doi:10.2307/1441458. JSTOR 1441458.
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