CRUSTACEA OF NEW ZEALAND 



283 



Fig. 19. Outer lobe of same, x 120. 



20. First griathopod. X 30. 



21. Second gnathopod. X 30. 



22. First ])erfeo])0(l. X 30. 



23. Fourth perseopod. X 30. 



24. First pleopod. X 30, with " coupliug-spines " more enlarged. 



25. Second pleopod. x 30. 



26. Third pleopod. X 30. 



27. First uropod. x 30. 



28. Second uropod. x 30. 



29. Third uropod. X 30. 



30. Telsou. X 30. 



Plate XXI. 



Gammarus fragilis. 



Fig. 1. Side view of whole animal, x 12. 



2. Upper antenna, x 30. 



3. Lower antenna. x 30. 

 i. Upper lip. X 70. 



5. Left mandible, showing palp and cutting-edges only, x 70. 



G. E.\tremity 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 same, x 120. 



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



13. Second maxilhi. x 70. 



14. ^laxillipedes, from below. X 45. 



15. The same, from above. X 45. 



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



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



18. First perseopod. x 30. 



19. Fourth perseopod, basal joints and extremity, x 30. 



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



21. Third pleopod. x 30, with '■ coupling-spines " more magnified. 



22. First uropod. x 30. 



23. Second uropod. x 30. 



24. Third uropod. x 30. 



25. Telson. x 30. 



Plate XXII. 



('uUiopius subterraneun, c^ . 



Y\g. 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. VI. 



37 



