PLATE V. 



Pseudalibrotm Nanseni, G. 0. Sars, 

 (continued). 



Pig. 1. Posterior gnathopod with branchial lamella. 



la. Extremity of same, more highly magnified. 



2. First pereiopod. 



3. Second pereiopod. 



4. Third pereiopod. 



5. Fourth pereiopod. 



6. Last pereiopod. 



7. Postero -lateral corner of last epimeral plate of metasome. 



8. Terminal segment of urosome, with last pair of uropoda and telson ; 



dorsal view. 



9. First uropod. 



10. Second uropod. 



11. Last uropod. 



12. Telson. 



