1 895- ^"o. 8. SOUTH-AFRICAN EXTOMOSTRACA. 53 



Explanation of the Plates. 

 PI. I. 



Daphnia dolichocephala. G. O. Sars. 



Fig. I. Adult female of the earlier generations, viewed from the A'entral 

 face (outer part of the antennæ omitted). X 34- 

 Same, seen from left side. 



Rostral part of the head, with the antennulæ, more highly 

 magnified. 



— 4. Terminal part of the tail without the caudal setæ, lateral view. 

 Tip of same, with the terminal claws, still more strongly magnified. 



— 6. Recently hatched young, seen from right side. X 46- 

 Adult male, viewed from right side. X 52. 

 Same. Inferior part of head, together with the anterior corners 



of the valves, more highly magnified. 



— 9. Same. Outer part of tail. 



— 10. Female with ephippium, seen from left side. X 34. 



PI. II. 



Daphnia propinqva, G. O. Sars. 



Fig. I. Adult, oviferous female, seen from left side. X 46. 



— 2. Same, viewed from the dorsal face. 



— 3. Inferior part of the head, more highly magnified. 



— 4. Terminal part of the tail, without the caudal setæ; lateral view. 



— 5. Tip of same, with the terminal claws, still more highly magnified« 



— 6. Dorsal part of carapace of a female with ephippium, seen from 



left side. 



