Definition
Strophurus elderi is a species of gecko in the family Gekkonidae, endemic to arid and semi‑arid regions of Australia. It is commonly known as Elder’s spiny‑tailed gecko.
Overview
Strophurus elderi inhabits a range that includes parts of Western Australia, South Australia, the Northern Territory, and Queensland. The species prefers shrubland and spinifex grassland in desert and semi‑desert environments, where it shelters under rocks, logs, and vegetation. It is nocturnal and primarily insectivorous, feeding on a variety of small arthropods.
Etymology/Origin
The specific epithet elderi honors Thomas Elder (1826–1897), a Scottish‑born Australian pastoralist and philanthropist who supported scientific exploration in the 19th century. The genus name Strophurus derives from Greek roots “strophē” meaning “turn” and “oura” meaning “tail,” referencing the distinctive tail morphology of the group.
Characteristics
- Size: Adults typically attain a snout‑to‑vent length (SVL) of 5–6 cm, with a tail of comparable length.
- Morphology: The tail is covered with sharp, keeled spines and is capable of secreting a mild, adhesive, and irritating fluid when the animal is threatened, a defensive trait characteristic of the genus.
- Colouration: Dorsal coloration ranges from pale brown to sandy yellow, often marked with irregular darker blotches or speckles that provide camouflage against the substrate. Ventral surfaces are generally lighter.
- Scales: The body is covered with small granular scales; the dorsal surface of the tail bears larger, conical spines.
- Reproduction: The species is oviparous, laying clutches of two hard‑shelled eggs, which are deposited in concealed microhabitats such as under debris or within crevices.
- Behavior: Primarily nocturnal; emerges at night to forage. When approached, it may display a defensive posture, raise its tail, and release the tail secretion.
Related Topics
- Genus Strophurus – a group of Australian geckos noted for their spiny tails and defensive secretions.
- Australian desert reptiles – fauna adapted to arid environments, including other gecko families and skinks.
- Tail autotomy and defense mechanisms – comparative studies of lizard tail shedding and chemical defenses.
- Thomas Elder – historical figure and patron of Australian scientific expeditions.
References for the above information are drawn from peer‑reviewed herpetological literature and taxonomic databases.