Plate VI. 



E ni arge - 



1 — 10. Paracalanus aculeatus Giesbr., male. ^^^t- 



1. Outline (lateral) 40. 



2. Right antenna of the 1st pair 150. 



3. Antenna of the 2nd pair 270. 



4. Mandible 270. 



5. Masticatory apparatus of the mandible 270. 



6. Natatory leg of the 1st pair 270. 



7. » » » » 4th pair 270. 



8. Fifth pair of legs 270. 



9. Maxilla 270. 



10. Maxilliped of the 2nd pair 150. 



11 — 22. Pseudodiaptomus Aurivillii Cl., female. 



11, 12. Outline (lateral and dorsal) 40. 



13. Mandible 150. 



14. Terminal seta of the 4th pair of legs 500. 



15. Right antenna of the 1st pair 150. 



16. Masticatory apparatus of the mandible 270. 



17. Maxilla 500. 



18. Natatory leg of the 1st pair 270. 



19. Antenna of the 2nd pair 150. 



20. Natatory leg of the 3d pair 150. 



21. Leg of the 5th pair 500. 



22. Furca 150. 



