PLATE XXIX. 



Metridia longa, (Lubbock). 



Fig. 1. Adult female, dorsal view. 



2. Same, viewed from right side. 



3. Adult male, viewed from left side. 



4. Frontal part of body, with anterior and posterior lips, lateral view. 



5. Natatory leg of 3rd pair of male. 

 6. of 2nd pair of female. 



7. Extremity of tail with the caudal rami, dorsal view. 



8. Last pair of legs of female. 



9. Last pair of legs of male. 



10. Right leg of same pair, isolated. 



