98 



SYNOPSIS OF FLEAS FOUND ON DOMESTIC KATS AND MICE. 



1. H. tripectinata, Tirab. The comb o£ the head is restricted to the lower 

 edge of the gena (fig. 27). The abdomen bears one comb, which is situated 

 on the first tergite, each o£ the other tergites bears some small apical spines. — 

 This is a Mediterranean species which occurs on mice and rats ; it has also 

 been found in the Azores. 



The Californian ground squirrel Citellns heecheyi has been proved to play 

 an important part in plague infection in California. A full account of the 

 fleas of this animal is given in U.S.A. Public Health Reports, vol. xxiv. 

 no. 29, 1909, Washington^ Government Printing Office. 



