PLATE XII. 



Fig. 1. Leiopus leptodactylus. 



Fie. 1. Mandible. 



*S 



Figs. 2-6. Ilyarachna quadrispinosa. 

 Fig. 2. Female, dorsal aspect. 

 Fig. 3. Antennnle. 

 Fig. 4. Terminal region of abdomen. 

 Fig. 5. Uropod. 

 Fig. 6. One of the posterior thoracic appendages. 



Figs. 7-14. Acanthomunna proteus. 



Fig. 7. Male, dorsal aspect. 



Figs. 8, 8b. Branched spines covering the body. 



Fig. 9. Antennnle. 



Fig. 10. One of the thoracic limbs. 



Fig. 11. One of the first pair of abdominal appendages. 



Fig. 12. Distal region of same appendages; more highly magnified, a, sensory (?) 

 processes ; gl, ganglionic mass : b, sensory hairs. 



Fig. 13. One of the second pair of abdominal appendages, with penial filament. 



Fig. 14. One of the third pair of abdominal appendages. 



