PLATE XCIII. 



Artotrogus magniceps (female). 



Fig. 1. Adult female. 



2. Anterior antenna. 



3. Siphon. 



a a. Extremities of siphonal limbs. 

 a. Same more highly magnified. 

 h. Mandible. 



h'. Extremity of same more highly magni- 

 fied. 



4. Maxilla. 



5. First foot-jaw. 



6. Second foot-jaw. 



7. Foot of fourth pair. 

 • 8. Foot of fifth pair. 



9. Shell-structure. 



Artotrogus Normani. 

 10. Adult male. 



