Nature conservation

Threatened species

Tusked Frog population in the Nandewar and New England Tableland Bioregions - profile

Indicative distribution

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The areas shown in pink and/purple are the sub-regions where the species or community is known or predicted to occur. They may not occur thoughout the sub-region but may be restricted to certain areas. ( click here to see geographic restrictions). The information presented in this map is only indicative and may contain errors and omissions.
Scientific name: Adelotus brevis - endangered population
Conservation status in NSW: Endangered Population
Commonwealth status: Not listed
Gazetted date: 15 Dec 2000
Profile last updated: 09 Jun 2022


The tusked frog is a small, flattened frog up to 50 mm in snout-to-vent length, olive green to almost black above and black and white below, with orange-red patches in the groin and on the hind legs. Males have a large wide head, and the species is unusual amongst frogs in that males are normally larger than females. The call is a single “cluck” repeated slowly. Both sexes bear sharp tooth-like tusks in the lower jaw that fit into depressions within the upper jaw; these tusks are larger in males and may be used agonistically when defending breeding sites against rival males.


The Tusked Frog is distributed along the eastern coast and adjacent ranges from central Queensland to southern NSW, extending inland to the New England Tableland (New England Bioregion) and North West Slopes (Nandewar Bioregion). Tusked Frogs have experienced large declines in in the New England and Nandewar Bioregions and are now very rare there, and the population in these regions has been listed as an Endangered Population under the Biodiversity and Conservation Act. The species remains more common in lower elevation coastal areas.

Habitat and ecology

  • Rainforests, wet forests and flooded grassland and pasture. They are usually found near creeks, ditches and ponds, and call while hidden amongst vegetation or debris.
  • The species breeds from spring through to summer, with a peak during late spring.
  • Eggs are deposited in nests under leaf litter or other cryptic sites such as old yabbie burrows near or in water.

Regional distribution and habitat

Click on a region below to view detailed distribution, habitat and vegetation information.


Recovery strategies

Activities to assist this species

Information sources

IBRA Bioregion IBRA Subregion Known or predicted Geographic restrictions region
NandewarInverell Basalts Predicted None
NandewarKaputar Predicted None
NandewarNandewar Northern Complex Known None
NandewarPeel Predicted None
New England TablelandsArmidale Plateau Predicted None
New England TablelandsBeardy River Hills Predicted None
New England TablelandsBinghi Plateau Predicted None
New England TablelandsBundarra Downs Predicted None
New England TablelandsDeepwater Downs Predicted None
New England TablelandsEastern Nandewars Predicted None
New England TablelandsEbor Basalts Predicted None
New England TablelandsGlenn Innes-Guyra Basalts Predicted None
New England TablelandsMoredun Volcanics Predicted None
New England TablelandsNightcap Predicted None
New England TablelandsNortheast Forest Lands Known None
New England TablelandsRound Mountain Predicted None
New England TablelandsSevern River Volcanics Predicted None
New England TablelandsStanthorpe Plateau Predicted None
New England TablelandsTenterfield Plateau Known None
New England TablelandsTingha Plateau Predicted None
New England TablelandsWalcha Plateau Known None
New England TablelandsWongwibinda Plateau Predicted None
New England TablelandsYarrowyck-Kentucky Downs Predicted None