Diam. 



PLATE IV. 



Figs. 1-4. Pteropathes fragilis, n. sp. 



Fig. 1. Three portions of the corallum, showing the base and mode of branch- 

 ing ; one-half natural size. 



Fig. 2. Portion of a branehlet, showing the arrangement of the spines, . x 13 



Fig. 3. Anterior view of a branch, showing four polyps, . . . x 4 



Fig. 4. The same portion seen from the side, . . . . x 4 



Figs. 5-7. [Antipathes] cylindrica, n. sp. 



Fig. 5. The whole corallum, showing the bottle-brush type of growth ; about 

 three-fifths natural size (from a photograph). 



Fig. 6. Four of the branches, forming one revolution of the stem, . . x 2 



Fig. 7. Portion of a branehlet, showing the arrangement of the spines, . x 13 



Figs. 8, 9. Leiopathes glaberrima (Esper). 



Fig. 8. Apical portion of the corallum, showing the irregularity in the size and 

 position of the polyps ; natural size. 



Fig. 9. Portion of a branehlet, showing the position of six polyps, . . x 8 



