PLATE V. 



Paraxius altus (p. 37). 



Lateral view; enlarged three times. 



Rostrum, upper surface. 



Siagon or mandible. 



Third siagnopod. 

 1/;. First gnathopod. 



Second gnathopod (with podobranchia and mastigobranchia detached) 



First perciopod. 



Second pereiopod. 



Fifth pereiopod (extremity). 



Second pleopod (part). 

 lvzv. Rhipidura ; z, telson ; v,v, pleopoda. 

 lbr. Branchial plumes. 



Eiconaxius acutifrons (p. 40). 



2$. Lateral view; enlarged three and a half times. 

 2$. Upper surface of rostrum, female. 



2 $ . Rostrum, male. 



2d. Siagon or mandible. 



2g. Third siagnopod. 



2h. First gnathopod. 



2t. Second gnathopod. 



2k.l. First pereiopod ; from the left side. 



2q. Third pleopod, with stylamblys and a cincinnulus detached and magnified. 



Eiconaxms kermadeci, female (p. 43). 



3 $ . Lateral view of a female specimen ; enlarged twice. 

 3kl, First pereiopod ; from the left side. 



3hr. First pereiopod ; from the right side. 

 Si. Second pereiopod. 



Eiconaxius parvus (p. 44). 



i 



4. Lateral view of a female specimen ; enlarged four times. 



5. Brephalos extracted from the ovum, seen from the ventral surface ; magnified 



about thirty times. 



