PLATE LVI 



Figure 1. Ceratophyllus fasciatus, ?. X 36. 



Figure 2. The head of Ctenophthalmus agyrtes. X 80. 



Figure 3. Echidnophaga galiinaceits, ? . X45. 



Figure 4. Dermatophyllus penetrans, ? , in the distended 



condition, after Taschenberg. 



Figure 5. The head of Lycopsylla novus, after Rothschild. 



Figure 6. Xenopsylla cheopis, ? . X 36. 





