PLATE III. 

 Figs. 1-4. Stannoma dendroides, n. sp. (p. 72). 



Diam. 

 Fig. 1. Complete specimen, . . . . . . . x 2 



Fig. 2. Transverse section through a branch, f, spongin-fibrilla? ; r, Radio- 

 larian shells ; h, tubular portions of the reticular hydrorhiza of 

 the symbiotic Hydroid (Stylactdla), . . . x 40 



Fig. 3. A small portion of the same transverse section (fig. 2) ; more highly 



magnified. Characters as in fig. 2, . . . x 150 



Fig. 4. Surface of a branch. Characters as in fig. 2, . . . x 70 



Fig. 5. Stannoma coralloides, n. sp. (p. 73) . 

 Fig. 5. Complete specimen, . . . . . . x 3 



Figs. 6-9. Stannarium alatum, n. sp. (p. 70). 



Figs. 6, 7. Lateral views, from different sides, . . . x 1*5 



Fig. 8. Apical view, . . . . . . . x 1 -5 



Fig. 9. A bunch of spongin-fibrilla?, . . . . . . x 400 



Figs. 10-14. Stannarium concretum, n. sp. (p. 71). 



Figs. 10-12. Small specimen, the xenophya of which are principally Radio- 



larian shells, . . . . . . . x 1*5 



Fig. 10, Lateral view; fig. 11, apical view; fig. 12, basal view. 



Figs. 13, 14. Larger specimen (of a softer consistency than the specimen 

 represented in figs. 10-12), the xenophya of which are principally 

 fragments of Globigerina shells, . . . . x 1 "5 



Fig. 13, apical view; fig. 14, lateral view. 



