33. Thorax covered with a fused plate; eyes, when present, on movable stalks (35 A & B)..........
ORDER DECAPODA.............................LOBSTER, CRAB, CRAYFISH, SHRIMP, and so
forth.
Thorax not covered with a fused plate; eyes, when present, not on movable stalks (35 C & D)
ORDER ISOPODA.....................................................................SOWBUG, PILLBUG
33. One pair of legs per body segment (36 A). CLASS CHILOPODA...................CENTIPEDE
Two pairs of legs per body segment (36 B). CLASS DIPLOPODA....................MILLIPEDE
Figure 2-2. Standard identification key (concluded).
MD0170
2-16