DOLIOLIDAE AHEX UAL REPRODUCTION. 



475 



ventral process (x?) near the posterior end of the body ; this process 

 is derived from the peduncle connecting the median bud with the 



Flu. 21">. Tin- three generations of Dnliohim MUlleri (after GROBBEX). .1. young 

 "nurse" or blastozooid ; /i, the phorozooid; 0, .sexually mature individual or 

 gonozooid. <l, alimentary canal; ds, dorsal outgrowth of the "nurse" form; es, 

 inlostyle ; //. peripharyngeal band ; <j, ljuds of the sexual generation ; h, testis ; 

 A.s. integumental sensory organ ; ks, gill-clefts ; n, ganglion ; tit, auditory organ ; 

 "/. ovary; p, pericardiaf vesicle and heart: xt, peduncle for the attachment of the 

 gonozooida (//) to the phorozooid ; vs, ventral stolon of the "nurse" form (so-called 

 rosette-like organ). 



