PLATE II. 



Page 

 Fig. 1. Strophogo7'gia petersi,u. s]).; natural size, . . . 2 



Fig. la. „ „ two polyps ; enlarged. 



Fig. 2. „ fragilis, n. s^).; five polyps; enlarged, ... 4 



Figs. 3, 3a. Trichoptilum, Kolliker. Through an inadvertence these figures have 

 been engraved on this Plate, they represent a possibly new- 

 species of this genus. The very imperfect specimen was taken 

 at a depth of 1900 fathoms at Station 143, off the Cape of Good 

 Hope. 



