EXPLANATION OF PLATES 



•PLATE 9 



Fig. 1. Dorsal view of a portion of a protruded chain of Salpa democratica. 

 X 18. 



Fig. 2. Ventral view of a mature individual of the solitary generation. 

 X 4.5. 



Fig. 3. Dorsal view of aggregate form containing a nearly mature embryo 

 of the solitary generation. X 4. .5. 



294] 



