CRUSTACEA OF NEW ZEALAND 283 



Fig. 19. Outer lobe ol: .sime. x 120. 



20. First giiatbopod. x 30. 



21. Sceoiid gnathopod. x 30. 



22. First peraeoixjil. x 30. 



23. Foui'th peraeopod. x 30. 



24. First pleopod. x 30, with " eoupliug-spiiies " more enlarged. 



25. Second pleopod. X 30. 



26. Third pleopod. x 30. 



27. First uropod. x 30. 



28. Seeond uropod. x 30. 



29. Third uropod. x 30. 



30. Telson. x 30. 



Platk XXI. 



Gammarus frayilis. 



Fig. 1. Side \iew of whole animal. x \2. 



2. Upper antenna, x 30. 



3. Lower antenna, x 30. 

 -l. Upper lip. X 70. 



5. Left mandible, showing palp and eutting-cdges only, x 70. 

 G. E.vtremity of same. X 120. 



7. Extremity of right mandible, from above, compressed. x 70. 



8. The same seen in profile from below, x 70. 



9. Lower lip. x 70. 



10. First maxilla of right side, x 70. 



11. Extremity of palp of sa) le. x 120. 



12. Extremity of palp of first maxilla of left side, x 120. 



13. Seeond maxilla, x 70. 



14. Maxillipedes, from below, x 45. 

 1"). The same, from above, x 45. 



16. First gnathopod, inner side, from a large specimen. x 30. 



17. Second gnathopod, outer side, from smaller specimen, x 30. 



18. First peraeopod. x 30. 



19. Fourth peraeopod, basal joints and extremity. X 30. 



20. Extremity of same, x 70, with " auditory seta"' more magnified. 



21. Third pleopod. x .30, with '• coupling-spnics " more magnified. 



22. First uropod. x 30. 



23. Second uropod. x 30. 



24. Third uropod. x 30. 



25. Telson. x 30. 



Platk XXII. 



CaUiopius xubterraneus, ^J . 



Fig. 1 . Side view of male, x 12. 



2. Peduncle of upper antenna, x 30. 



3. Calceolus from the same,. highly magnified. 



4. Lower antenna, x 30. 



SECOND SERIES. — ZOOLOGY, VOL. YI. 37 



