PLATE I. 



Fig. 1. 1 a, 1 b. Scolopendra castaneiceps. (Natural size.) 



2. Bothropolys multidentatus. (Magnified. ) 



3. Lithobitts Americands. (Magnified.) 



4. Opisthemega postica. (Natural size.) One of the hind feet is a 



reproduced appendage. 



5. Scolopocryptops sexspinosa. (Natural size.) 



6. Scolopendra polymorpha. (Natural size.) 



7. Mecistocephalus lineattjs. 



8. Strigamia epileptica. 



9. Strigamia bothrioptjs. 



10. Male appendages of Oligaspis ptjnctioeps. 



10 re. View of the other surface of the outer claw of the same. 



11, 11 re. Male appendages of Iulus Canadensis. 



