PLATE III. 



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



Fig. 1. Complete specimen, ....... 



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

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

 the symbiotic Hydroid (Stylactella), .... 



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

 magnified. Characters as in fig. 2, 



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



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

 Fig. 5. Complete specimen, ....... 



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

 Figs. 6,7. Lateral views, from different sides, .... 



Fig. 8. Apical view, ........ 



Fig. 9. A bunch of spongin-fibrillse, ...... 



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



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

 larian shells, ....... 



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, ..... 

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



