Rough-scaled Snake
Tropidechis carinatus
Highly Venomous
Other common names: Clarence River Snake
Significance to Humans
Highly Venomous
Bites from the Rough-scaled Snake have resulted in human fatalities. Although reclusive in nature, it will inflate and flatten its body and neck when feeling threatened. Bites from this species should be treated immediately and attended to with proper first aid.
General Description
The Rough-scaled Snake exhibits a brown to olive colouration, with narrow, irregular cross-bands or blotches of darker brown. The belly surfaces are greenish-grey or olive-cream, often with darker blotches. Its midbody scales have a raised keel or carinated appearance. This colouration and scale structure has caused some confusion with the non-venomous Keelback Snake (Tropidonophis mairii). The Keelback Snake can be differentiated by the presence of a loreal scale and usually more pronounced keels on each scale. Midbody scales at 23 rows.
Average Length
On average, measures 70 cm, but there have been reports of specimens reaching 1 metre in length.
Habitat in SE Qld
Primarily inhabits moist areas within forests at higher altitudes, notably Mt Glorious. However, small populations may persist in some moist lowland areas.
General habits
Skilled climber. Active both day and night.
Diet
Feeds on a variety of small vertebrates, including frogs, lizards, small mammals, and birds. While it generally forages at ground level, it is capable of climbing to capture prey.
Local distribution
Commonly encountered at Mt Glorious, Mt Nebo and the western facing slopes of the D’Aguilar Range. In 1999, a specimen was found in Rochedale, an area with known historical records. Recent sightings have also occurred in peripheral suburbs such as Upper Brookfield.
Around the home
A local snake handler servicing the Mt Glorious and Mt Nebo area has recorded encounters with the Rough-scaled Snake around residential properties. The snakes were found on a front verandah and on a kitchen shelf. They are typically associated with ground refugia, such as timber piles, sheet iron, rock walls, and dense vegetation. Due to its climbing ability, this species may also utilise roof cavities in search of geckos and frogs.