9. Siphonaptera from Juan Fernandez. 
- 
The Hon. N. CHARLES ROTHSCHILD, M. A. 
The two wide-spread species of Fleas obtained on Juan Fernandez are 
not indigenous on that island, but are of Palaearctic origin. They have accom- 
panied the European settler and his animal friends, dog and cat, to all regions 
where landhunger has driven him and, though they are not found everywhere, 
seemingly thrive under very diverse climates. 
We may assume that several other species of Siphonaptera occur on 
Juan Fernandez, especially on the birds visiting the island or breeding there. 
1. Pulex irritans L. (1758). 
A series of specimens. 
2. Ctenocephalus felis Bouché (1835). 
A number of both sexes. 

