A. II. Lees 



255 



tor breaking the outer membrane. The smaller is ventrally situated 

 and does not appear to be in such a position as to be of service a 

 bursting the outer shell. 



At the most anterior end of the inner membrane is a peculiarly 



Fig. 4. Egg divested of outer membrane. 

 large tubercle 



■inner membrane. 



eye 



small tubercle 

 Fig. 5. Egg divested of outer and middle membranes. 



small -- 

 tubercle 



Fig. 6 a. The tubercles. 



Fig. 6 b. Weak spot in inner 

 membranes. 



modified area. Viewed under a high power it appears as a series of 

 radiating thickened lines (Fig. 6 b). It lias the appearance of being 

 specially formed for ensuring the bursting of the membrane at the time 



of egg hatching. 



That these tubercles are not on the larva, as suggested by Awati, 



