PLATE V. 



Figs. 1-5. Bathypaihes patula, n. sp. 



Diam. 



Fig. 1. The whole corallum clothed with polyps and ccenenchyma to near the 

 base; natural size. 



Fig. 2. View of a portion of the stem and its branches, showing the form and 



position of the dimorphic zooids, . . . . . x 2 



Fig. 3. Terminal portion of a branch, the distal half of which is membranous 



and devoid of spines, . . . . . . x 5 



Fig. 4. Middle portion of a branch, showing the typical arrangement of spines, x 13 



Fig. 5. Bathypaihes patula, var. plenispina, nov. Middle portion of a branch, 



showing the arrangement of the spines, . . . x 13 



Figs. 6-9. Aphanipathes sarothamnoides, n. sp. 



Fig. 6. Portion of the corallum, showing the mode of branching ; about one- 

 half natural size (from a photograph). 



Fig. 7. One of the branches and its derivatives ; natural size. 



Fig. 8. Anterior view of part of a brauchlet, showing five polyps, . . x 4 



Fig. 9. Portion of a branchlet, showing the arrangement of the spines, . x 13 



Fig. 9a. One spine ; more highly magnified, . . . x 52 



