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Limnodynastes convexiusculus

Marbled Frog

Conservation Status

EPBC:

Unlisted

IUCN:

Least Concern

Calling Period

Possible
Yes
Peak
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Description

A large species of frog reaching up to 6 cm in body length. It has a brown back with darker brown or dark olive-green patches, and sometimes a thin longitudinal stripe along the middle. There is a wide, dark stripe from the tip of the snout to behind the eye. There is also a white stripe from under the eye to the arm. The belly is white. The pupil is nearly round and the iris is gold. Fingers are unwebbed and toes are slightly webbed, both without discs.

Breeding Biology

Eggs are laid as a foamy mass on the surface of temporary ponds and swamps in flooded grassland. Tadpoles can reach a total length of up to 8 cm and are black in colour, or grey with brown spots. They often remain at the bottom of water bodies, and take around two months to develop into frogs. Breeds during spring to summer in the wet season.

Similar Species

Looks similar to Limnodynastes depressus, Limnodynastes fletcheri, Limnodynastes lignarius, Limnodynastes peronii, and Limnodynastes tasmaniensis in its distribution, but has a different call to all of these species, and lacks multiple brown longitudinal stripes as present in Limnodynastes peronii. It also has a less flattened head shape compared to Limnodynastes depressus, and lacks the distinct and large tympanum of Limnodynastes lignarius.

Images

Photo: Jodi Rowley

Photo: Shane Black

Photo: Shane Black

Photo: Shane Black

Calls

By: Dane Trembath

By: Paul Doughty

By: Delma Clifton

By: Shane Craswell

Distribution

Found throughout northern Australia, from the Kimberley region in WA, east through the Top End of the NT to the Cape York region, and down to the mid north coast of QLD.

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