IV 



METAMORPHOSIS 



Si 



place ; at this stage the body has the appearance shown in 

 Fis. 51. The region of the head at the base of the antennae 



O o 



now becomes greatly swollen and elongated to form the peduncle 



Fri;. !'.. N/Miplins larva of /.,'//x ftisi-ifit/tn-it!, ;: 1*2. J j, A->, 1st ami 2ml antennae ; 

 />', brain; /:, c\c; //. Ironlo-latrral limn; -I/, liiuinlililc ; X, stoin.-irli. (After 

 ( I 



or sliilk nf the adult; tlio larval hivalvt; c;ira]i:irc is cast, oil' 

 and mi tilt- extri-iial surface, of the mantle tin- c.alcilicat ions lir^in 

 which \\ill give rise to tlie exoskrlctal ]ilates of tin- adult. This 

 rt^4)ii is known as the " ca])itulum " of the adult, as iippnseil to t he 

 " ]ieduncle." The, young Cirripede is now known as <i ]ni]ia, and 

 from this stage the adult form is reached by a, gradual transition. 

 VOL. IV G 



