​

Varanus primordius is considered one of the smaller Australian monitor lizard species, typically measuring around 12cm in snout-vent length for adult individuals (excluding the tail).

​

There are distinct differences in coloration between two populations of V. primordius. Generally, they display flecks of dark brown to black with an overall coloration ranging from reddish brown to grey. However, the northern variety exhibits more vibrant red flecks and a slightly brighter overall appearance. Unlike Ackies, they do not possess a neck stripe.

Physically, V. primordius features a robust tail adorned with spines similar to Varanus acanthurus.

​

The distribution of V. primordius is limited to the northern regions of Western Northern Territory.

Their natural habitat consists of tropical savannah areas, often in proximity to flood-affected zones during the wet season. They are typically found sheltering under rocks or occupying shallow burrows, occasionally encountering partially flooded burrows.

V. primordius is currently relatively rare within the Australian reptile hobbyist community.

​

In captivity, their behaviour resembles that of Ackies, with some individuals displaying bolder tendencies than others. Overall, they readily acclimate to human interaction and can be easily trained for tong and hand feeding.

​

Enclosure size: Due to their relatively small size and terrestrial nature, an enclosure measuring around 80cm x 60cm is suitable for V. primordius. Vertical height is not a significant concern.

​

Substrate and furnishings: A substrate consisting of sand and soil is appropriate, as V. primordius exhibits a tendency to burrow. Providing ample hollows, hiding spots, and flat rocks for burrowing is recommended. Scattering leaf litter on the enclosure floor can also serve as enrichment for foraging behaviours.

​

Temperatures and lighting: Adequate UVB lighting is essential. An ideal setup includes a basking spot with a bright lamp directed onto a rock or tiles, maintaining a temperature range of approximately 50-65°C. The rest of the enclosure should provide an ambient heat gradient ranging from 28-33°C during the warmer, active months.

​

Humidity: V. primordius originates from a tropical savannah environment, and it is beneficial to replicate natural humidity patterns. This involves cycling higher humidity levels during warmer months and allowing it to dry out during cooler periods. Providing a humidity hide is generally recommended.

​

Feeding: The primary diet for V. primordius consists of crickets, wood roaches, and various insects, with regular dusting of calcium powder and vitamins. Occasional additions to their diet can include chopped pinkie mice, lean turkey or chicken mince, chopped chicken hearts, boiled chicken egg, and quail egg. A well-balanced variety of food sources is ideal.

​

Life span: V. primordius typically has a lifespan of around 10-12 years in captivity, although detailed records are limited.