82 PLATE XV 



THE 8th STERNITE AND TERMINAL PORTION 

 OF BRITISH BIRD FLEAS 



(x 75>) 



a b c 



Ceratophyllus rossittensis C. gallinae Ceratophyllus Jringillae 



(from carrion-crow) (from goldfinch) (from house-sparrow) 



d e f 



Ceratophyllus borealis C. columbae Ceratophyllus garei 



(from Arctic tern) (from rock-dove) (from duck) 



