For the safety of our community, all Queensland Museum Network locations are temporarily closed to the public until further notice. Stay safe and read more.

Spanner Crab

Ranina ranina

Other name

Red Frog Crab


Tail prominently visible from above; broad flat frontal spines; flattened legs; spanner-like claws; bright orange. To 125 mm across.


In subtidal sand and muddy-sand; shallows to about 50 m depth. Crabs have been swarming in large numbers on sand banks within Moreton Bay, apparently for breeding. Widespread, northern Australia from Houtman Abrolhos, WA, to southern NSW; Indo-West Pacific.

Queensland Museum's Find out about... is proudly supported by the Thyne Reid Foundation and the Tim Fairfax Family Foundation.