Yes. Crabs and other crustaceans have bilateral symmetry. Bilateral symmetry means something has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.
One type of symmetry is rotation. The second type of symmetry is translation. The third type of symmetry is reflection.
Bilateral Symmetry
Believe it or not Mollusks start out with bilateral symmetry. Some retain it such as slugs, snails, squid, octopuses, and limpets. Then there are others that lose it as they mature such as oysters, clams, scallops, etc.
Bilateral symmetry
Bilateral Symmetry
Bilateral symmetry.
Bilateral symmetry.
Bilateral symmetry
Bilateral Symmetry
Bilateral symmetry
Radial Symmetry
Asymmetry symmetry