soldier crab
noun
a small blue Australian estuarine crab of the Mictyris genus usually found in large numbers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for soldier crab
Historical Examples of soldier crab
When we returned to camp we were told that the half of our soldier-crab baits had been sucked off by bonefish.
Tales of FishesZane Grey
The Child clapped his hands for pleasure, and longed to see the soldier-crab and make him ashamed of himself.
The Ravens and the AngelsElizabeth Rundle Charles
And the Soldier-crab withdrew his long legs from the pebble, and marched away with a braggadocio air among the sea-weeds.
The Ravens and the AngelsElizabeth Rundle Charles
Parasites also are found in messmates; the soldier-crab gives lodging to the sexual Eustoma truncata in its interior.
Animal Parasites and MessmatesP. J. Van Beneden