COPEPODA—BRADY. 
Stephos simillimus. 
12. Female, seen laterally. X 65. 
13. Posterior antenna.. X 100. 
14. Mandible. x 300. 
15. Posterior maxilliped. X 240. 
16. Last joint of third exopodite. X 240. 
17. Basal joint of fourth foot. x 440. 
18. Last thoracic segment and abdomen. X 140. 
Calanus aculeatus. 9 
19. Last thoracic segment and abdomen. X 65. 
20. Apical joints and sete of anterior antenna.  X 65. 
21. Mandible and palp. X 140. 
22. Blade of mandible. x 140. 
23. Basal joint and serratures of fifth foot. X 240. 
PLATE X. 
Amphiascus elegans. 
Fig. 1. Female, seen laterally. X 84. 
. Anterior antenna and rostrum, female. x 200. 
. Anterior antenna of male. x 240. 
. Posterior antenna. X 240. 
Posterior maxilliped. X 350. 
. Foot of first pair. X 200. 
» third pair. x 140. 
. Endopodite of second foot of male. X 300. 
. Foot of fifth pair, female. x 200. 
~ _ male, X 240. 
. Posterior abdominal segments, female. x 140. 
12. Basal spines of first foot. 
CAAA A Fw bd 
— 
- © 
Amphiascus ignotus. 3 
13. Anterior antenna. XX 240. 
14. Mandible. x 320. 
15. Foot of first pair. > 240. 
16. » second pair. X 240. 
17. Filth pair of feet. 240. 
Oithona frigrda. 
18. Female, seen dorsally. x 65. 
19. Anterior maxilliped. X 320. 
20. Posterior maxilliped. X 180. 
20218—F Vou. V, Parr 3. 
