16 



University of California, Publications in Zoology [Vol. 23 



Tci-gun, 



App enclave 



Tig. 2. Cross-section of a typical somite Fig. 3. Typical macruran mandible, 

 (adapted from Caiman). 



propodiTe. 

 dactylopodite-?< 



carpopo 



cndopodite i 



protopodrTe 



exopodiTe 



>epipod'.te 



Fig. 4. Typical third maxilliped of a macruran decapod (adapted from Caiman). 



idactylopoditc I 



ipropodiTe f pojpof maxilliped 



iCorpopodiTeJ 



endoanath 

 tendopodiTeV 



proTopodiTe 



Fig. 5. Typical third maxilliped of a brachyuran (crab-like) decapod (adapted 

 from Brooks). 



Cervical qroove 



Fig. 6. Dorsal view showing regions on a brachyuran carapace (adapted 

 from Pearson). 



