Glossy koonac - Cherax glaber

This page was created in partnership with the Freshwater Fish Group and Fish Health Unit at Murdoch University


glossy koonac

Similar to the koonac, by distinguished by the smooth and glossy cephalothorax (shell of head and abdomen); rather than the more dimpled surface of other crayfish species which givens a more matte appearance.

Colour is mottled blackish-brown.


Restricted range in the extreme south-west corner of Western Australia, from Dunsborough to Windy Harbour.

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A predominantly burrowing species. Inhabits temporary waters of near-coastal swamps and wetlands.


Little is known of the biology of this species, but presumably similar to the koonac.

Conservation status

Not listed as threatened, however more work is needed to understand status.

Further information

Contact the department’s River Science team, or the Murdoch Freshwater Fish Group via email:, or go to their website:

Freshwater Fish Group Murdoch University    Harry Butler Institute