WHITE SHRIMP FROM THE GULF OF MEXICO 



11 



op//c s/a//\ 



ocu/ar p/a/e 



oesophaqea/ 

 musc/es 



hasa/ se<7/wenf 



pos/er/or 

 profocepna/on 



ex/erna/ har 

 ^of an/ennu/ar 





 ep/sforna/ 

 3 fa for 



ocu/or p/are depressor muscles 





prolocep ha/on affracfor musc/e 



Figure 5. — Dorsal view of protocephalon, carapace removed, to show muscles of postocular region. 



