Tyler's Toadlet is a species of ground frog

Frog

Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...

 that is found in coastal areas in southern New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

 and eastern Victoria

Victoria (Australia)

Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....

.

Physical description

This is a large frog (for its genus), up to about 35mm. It is dark to light brown with some orange/yellow spotting on the dorsal surface. A pale crown is present on the head of this species, however is less distinct than in U. fusca and U. laevigata. It has large parotoid glands. There is a pale yellow patch in the armpits. The ventral surface of this species is fully pigmented dark blue/black. The thigh patch is yellow in colour. This species is very similar to the Smooth Toadlet

Smooth Toadlet

The Smooth Toadlet is a species of Australian ground-dwelling frog native to the coast and west of the ranges of south-east Queensland, all of eastern New South Wales and north-eastern Victoria.-Physical description:...

 and differences between the two are discussed on that page.

Ecology and behaviour

This species is associated with dams and swamps in heathland, forest and cleared land. It distribution is not fully determined. It has a solid distribution south of Jervis Bay Territory

Jervis Bay Territory

The Jervis Bay Territory is a territory of the Commonwealth of Australia. It was surrendered by the state of New South Wales to the Commonwealth Government in 1915 so that the Federal capital at Canberra would have "access to the sea"....

 and there are some populations between Jervis Bay and Sydney

Sydney

Sydney is the most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. As of June 2010, the greater metropolitan area had an approximate population of 4.6 million people...

, there are records for this species north of Sydney, however similarities with other Uperoleia frogs may have led to mis-identification. Males make a deep, drawn out "arrrrk" call from spring to autumn around the breeding site, males often call many metres away from water.