454 



TRANSFORMATIONS OF INSECTS. 



the whole. The eye has become more pedunculated, and appears 

 to be movable. The auditory hairs have increased in number. 

 The sac-like vesicles, the germs of the pereipoda, have increased 

 in length at the rate of a joint at every moult, and seven of these 

 legs are visible. The future branchiae may be detected in the form 

 of simple sacs. The chelae, or pincers, are seen on the first pair 

 of legs. The pleon now has the seven segments proper to the 



THE METAMORPHOSES OF Carcittiis mceitas. 



3. A zoea within the transparent tunic. 2. Zoea after several moults. 



3. Zoea still older, and without spines, and with walking legs. 



adult, and the three central rings have undeveloped pleopoda upon 

 them. 



If we examine the growing animal after a few more moults, and 

 when it has increased to about three lines in length, we shall find 

 its outline still holding a resemblance, though a less close one, to 

 the previous appearance. The form of the carapace scarcely 

 differs except in the shorter relative length of the antennae and 

 dorsal spines, and the whole animal appears stouter and more 



