Diam. 



PLATE X. 



Figs. 1-8. Dendrdbrachia fallax, n. sp. 



Fig. 1. Portion of the corallum, showing the mode of branching ; natural 

 size. 



Fig. 2. Apical portion of a branch, showing the position of the polyps ; 

 natural size. 



Fig. 3. Portion of a branch, bearing one polyp, . . . x 13 



Fig. 4. A single pinnate tentacle, . . . . . x 13 



Fig. 5. Portion of the sclerenchyma, showing the spinose rugae, . x 13 



Fig. 6. Transverse section of the sclerenchyma near the apex of a branch, . x 26 



Fie. 7. A similar section taken near the middle of a branch, . x 13 



Fig. 8. Transverse section taken near the base of a branch, . x 6 



Figs. 9-13. Cirripathes propinqua, n. sp. 



Fig. 9. Portion of the stem clothed with polyps and coenenchyma; natural 

 size. 



Fig. 10. A single polyp, seen from above, . . . . . x 4 



Fig. 11. ] 



> Two other individuals, . . . . . . x 7 



Fig. 12. J 



Fig. 13. View of the inner surface of the skeletal sheath, showing the trans- 

 verse mesoglceal septa in the coenenchyma, . . . x 5 



