1 



PLATE B. 



BOWERBANKIA DENSA. 



Fig. a. Showing the animal fully expanded. 



1 Pharynx ; 2 Cardia ; 3 Gizzard ; 4 Stomach ; 5 Pylorus ; 



6 Intestine ; 7 Anus ; 8, 9 Muscles. 

 Fig. h. The animal completely retracted. 



2, 3 Opercular retractor muscles. 

 Fig. c. An immature animal. 

 Fig. d. One of the buds in its earliest state (after Faere). 



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