75 



300. 19. Foot of fifth pair, male, X 300. 20. 

 Abdomen and caudal stylets, X 90. 

 Idija elongata, n. sp. 

 Fig. 21. Posterior foot-jaw, X 380. 22. Foot of fifth 

 pair, female, X 115. 23. Foot of fifth pair, 

 male, X 115. 24. Appendage to the first ab- 

 dominal segment, X 115. 



Plate V. 



Idija elongata, n. sp. 



Fig. 1. Female seen from above, X 64. 2. Antennule, 

 X 253. 3. Antennule, male, X 253. 4. Foot 

 first pair of swimming feet, X 190. 5, Foot 

 fourth pair, X 190. 



Collocheres elegans, n. sp. 



Fig. 6. Female seen from above, X 52. 7. Antennule, 

 X 133. 8. Antenna, X 170. 9. Mandible, X 

 253. 10. Maxilla, X 170. 11. Anterior foot- 

 jaw, X 170. 12. Posterior foot-jaw, X 170. 



13. Foot of first pair of swimming feet, X 125. 



14. Foot of fourth pair, X 125. 15. Foot of 

 fifth pair, X 190. 



Ascomyzon thompsoni, n. sp. 



Fig. 16. Female seen from above, X 50. 17. Antennule, 



X 133. 18. Antenna, X 190. 19. Mandible, 



X 190. 20. Maxilla, X 125. 21. Anterior 



foot-jaw, X 127. 22. Posterior foot-jaw, X 127. 



23. Foot of first pair of swimming feet, X 127. 



24. Foot of fourth pair, X 127. 25. Foot of 

 fifth pair, X 200. 26. Abdomen and caudal 

 stylets, X 85. 



