TERRESTRIAL ISOPODA OP NATAL. 233 



the small exopodite ; the posterior margin is almost truncate, 

 whilst anteriorly the margin of each side is strongly raised, 

 leaving a deep concavity between the two; the endopodite is 

 club-shaped, setose, and has a long terminal spine in addition 

 to other smaller ones. 



EXPLANATION OF PLATE XIV, 



Illustrating Dr. Walter E. Collinge's paper, "Contributions to 

 a Knowledge of the Terrestrial Isopoda of Natal," Part II. 



Akermania spinosa gen. et sp. nov. 

 Fig. 1. — X 12. Dorsal view. 

 Fig. 2. — Anterior view of the cephalon. 

 Fig. 3. — x 84. Left antenna, dorsal view. 



Fig. 4. — X 230. Terminal portion of the inner and outer lobes of 

 the left 1st maxilla, ventral view. 



Fig. 5. — Terminal portion of the left 2nd maxilla, ventral view. 

 Fig. 6. — x 220. Terminal portion of the left maxillipede, ventral 

 view. 



Fig. 7. — X 36. First segment of the mesosome. anterior view. 

 Fig. 8. — Underside of the lateral margin of the 1st mesosomatic 

 segment. 

 Fig. 9. — Spines from the mesosome. 



Fig. 10. — X 56. Appendage of the 1st free segment of the meso- 

 some. 



Fig. 11. — Dorsal view of the telson and last metasomatic segment. 



Fig. 12. — Dorsal view of the left uropod. 



Fig. 13. — Bulbous body bearing a hair-like seta. 



Fig. 14. — X 320. Overlapping scales on mesosomatic segments. 



The author desires to thank the Carnegie Trust for the Universities 

 of Scotland for a grant to defray artists' charges. 



VOL. 4, PART 1. 16 



