630 



THE MICROSCOPE. 



the Flea (fig. 287) is a horny case, divided mto distinct 

 segments ; those upon the thorax being always disunited. 

 Although apterous, the Flea has the rudiments of four 



Fig. 2S7 



1, Penuile I' lea. 2 Male Flea. (Tlir small circles enclose fleas the actual or 



life size.) 



