EXPLANATION OF THE PLATES. 



PL I. 



Fig. 



1. 



2. 



2 a. 



3. 



4. 



5. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 



Sjjnopia ■ultramariiia. Daua. 



The animal seeu from the side o. CVi)- 

 One of the first pair of antennas, jj'. (^-/|). 



» » » second pair of antenuœ. (^. (^^/j). 

 The secondary flageUuni of the first pair of antennœ. ^. (^^/,). 

 A piece of the labrmu. o. ('*/,). 

 The right mandible. CV,)- 



A piece of the surface of the molar tubercle of the mandible. (^*"/]). 

 A bifid spine from the excavation of the mandible. (-*"/])• 

 The right one of the first pair of maxillse. (^^/i). 

 The left one of the second pair of maxillse. ('Vi)- 

 A spine from the same, (--"/i)- 

 The left maxiUiped. ("s/,). 

 One of the first pair of pereiopoda. (**/j 



» » » third » » » (*V,), 



» » » fourth » » » (*'/i) 



» » » fifth » » » (*V,) 



» » » sixth » » » (*^/i) 



» » » seventh » » » (*'/i) 



An ovitectrix from the fifth segment. (**/i). 

 One of the first pair of pleopoda. (**/i). 

 A hair from the preceding. (-^"Z,)- 

 The urns. (*V,). 



PI 11. 



Synopia Schêeleana. N. sp. 



Fig. 22. The animal seen from the side. ('^/i). 



» 23. One of the first pair of antennse. (^-/i)' 

 » 24. » » » second » » » (32/1 )• 



» 25. » » » first » » pereiopoda. (*Vi)' 



