200 G. 0. Sårs. 



Plate 2. 



Càlocaris Macandreœ, Bell. 

 (Transition stage between the larval and postlarval form). 



Fig. 1. Pseudolarva of Calocaris, viewed from the right side, 



2. The same; dorsal view, 



3. First antenna. 



4. Second antenna. 



5. Mandible with one of the labial lobes. 



6. First maxilla. 



7. Second maxilla. 



8. First maxilliped. 



9. Second maxilliped. 



10. Third maxilliped. 



11. First leg. 



12. Second leg. 



13. Third leg. 



14. Fourth leg. 



15. Fifth leg. 



16. One of the pleopods. 



17. Extremity of the abdomen, with the caudal plate 

 and the still imperfectly developed uropods; from 

 below. 



Plate 3. 



Gebia littoralis, Kisso. 



Fig. 1. First larval stage (Zoea); lateral view, 

 dorsal view. 

 1st antenna. 

 2nd antenna. 



mandibles and upper lip ; from below, 

 labium. 



