Has 5 pairs of legs, 2 pairs of antennae, breathes through gills, and most have a claw. Crustaceans Example: blue crab. Has 2 body segments and 8 legs.
had antennae, compound eyes, a mouth, and 4 pairs of leglike appendages --- Have Gills, Biramus Appendages, 2 pair of antennae, 3 or more pairs of appendages; 2 pairs of . ---Predaceous (Hunts for its food) ---Flat Body --- Has Fangs.
The word antenna has also been used as a common metaphor, "spiritual Crustaceans are also characterized by two pairs of antennae that extend in front of.
What has 2 pairs of antennae - official site
What has 2 pairs of antennae - numbers