SOME NEW CUINESE FLEAS. 



367 



of the head (text-fig. 106), that the antenna moves on a pivot 

 standing ahnost at right angles to the first segment. For that 

 reason the antenna cannot assume a position at right angles to 



Text-fig. 106. 



Head of Ceratophyllus crispus <J. 



the lateral surface of the head, but, when moved from the 

 antennal gi'oove, slides along the side of the occiput until the 



