Order of crayfish (in arthropod subphylum Crustacea, class Malacostraca) having a large, obvious carapace, large pedunculated eyes, well-developed pleopods, and five pairs of walking legs, including chelae.
POLLUTION TOLERANCE
No pollution tolerance categories defined.
Diagnostic Characters
order
2 Pairs of Antennae
4 Pairs of Jointed Walking Legs
Body Hardened on Outside
Carapace Present
Pair of Front Claws
+ Expanded Character List
have a large, obvious carapace, large pedunculated eyes, well-developed pleopods, and five pairs of walking legs, including chelae.
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