Plate YTI. 



Enlarge- 



Fig. 1, 2. Pseudodiaptomus Aurivillii Cl. '"''°*- 



» 1. Maxilliped of the Ith pair 500. 



» 2. » » » 2nd pair 270. 



» 3 — 10. Reticulina Aunvillii Cl. 



» 3. Outline (dorsal) 80. 



» 4. Antenna of the 1st pair 270. 



» 5. Leg of the 1st pair 270. 



» 6. » » » 3d pair 270. 



» 7. Last thoracic segment and abdomen 150. 



» 7a. Masticatory apparatus of the mandible (as seen through the carapace) 500. 



» 8. Antenna of the 2nd pair (as seen through the carapace) 500. 



» 9. Maxilliped of the 2nd(?) pair 270. 



» 10. » » » lst(?) pair (as seen through the carapace) 500. 



» 11 — 14. Tortanus gracilis Brady. 



» 11. Front and lip (lateral) $ 270. 



» 12. Terminal seta of Rei of the 3d pair of legs ? 500. 



» 13. Fifth pair of legs d^ 150. 



» 14. » » » » $ 150. 



» 15. Codonella fenestrata Cl 450. 



» 16. Triastrum Aurivillii Cl 40. 



»17. » » » central part 270. 



