SEA-FISHERIES LABORATORY. 83 



shows a number of changes in the nomenclature and 

 classification of the genera and species. 



Explanation of the Plates. 



Plate I. 

 Stenhelia herdmani, n. sp. (A. Scott). 



Fig. 1. Female seen from the side, X '27. 2. Antennule, 

 X 63. 3. Antenna, X 85. 4. Mandible, X 85. 

 5. Maxilla, X 85. G. Anterior foot-jaw, X 127. 

 7. Posterior foot-jaw, X 90. 8. Foot of first 

 pair of swimming feet, X 85. 9. Foot of fourth 

 pair, X 85. 10. Foot of fifth pair, X 127. 11. 

 Abdomen and caudal stylets, X 170 . 

 Stenhelia similis, n. sp. 



Fig. 12. Female seen from the side, X 40. 13. Anten- 

 nule, X 127. 14. Antennule of male, X 127. 

 15. Antenna, X 125. 1G. Mandible, X 253. 

 17. Maxilla, X 253. 18. Posterior foot-jaw, X 

 253. 19. Kostrum, X 253. 20. Foot of first 

 pair of swimming feet, X 127. 21. Foot of 

 fourth pair, X 127. 22. Foot of second pair, 

 male, X 127. 23. Foot of fifth pair, X 125. 

 24. Foot of fifth pair, male, X 125. 25. Abdo- 

 men and caudal stylets, X 53 



Plate II. 



Ameira gracilc, n. sp. 

 Fig. 1. Female seen from the side, X G4. 2. Antennule, 

 X 152. 3. Antennule, male, X 152. 4. An- 

 tenna, X 253. 5. Mandible, X 380. G. Pos- 



