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Cyclorana occidentalis

Western Water-holding Frog

Conservation Status

EPBC:

Unlisted

IUCN:

Not Evaluated

Calling Period

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

Description

A large species of frog that can reach up to 11 cm in body length. It has a yellow-brown or yellow-orange back, with darker yellow and grey specks. The sides are cream-coloured. The belly is white. The pupil is horizontal, and the iris is gold. Fingers are unwebbed and toes are fully webbed, both without discs. It has the amazing ability to live underground for years in a burrow without water, creating a water-holding cocoon of skin around its body to prevent it from drying out. This frog became a new species in 2017 after originally being identified as the western form of Cyclornana platycephala.

Breeding Biology

Eggs are laid as large clusters under the surface of the water in flooded claypans and temporary pools. Tadpoles can reach a total length of up to 8.5 cm, and are clear gold in colour. They swim at all depths of water bodies, and take around one month to develop into frogs. Breeds during summer after heavy rain.

Similar Species

Does not look similar to any other species in its distribution.

Images

Photo: Stephen Mahony

Photo: Marion Anstis

Calls

By: Ryan Ellis

Distribution

Found inland and on the coast in central west WA.

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