PLATE II. 



Poly|3ide of Cephalodiscus dodecalop/ms, seen from the ventral surface, and enlarged 

 under a lens, the actual length of the entire animal being about 2 mm. 

 Only a few of the tentacular plumes are visible, the rest being concealed by the 

 dense mass of filaments. The tip of the pedicle bears an early bud, the pedicle of 

 which is somewhat elongated. This example presented numerous minute pigment- 

 spots of a brownish hue all over its surface. 



