PLATE 58 



Fislulipora acutida sp. nov. 

 Page 223. 



Fig. 1. An enlargement of a vertical section showing zooecial tubes, diaphragms, and 



interstitial tissue. (X20.) 

 Fig. 2. Enlargement of transverse section showing outline of the zooecia. (X20.) 



Fislulipora variolata sp. nov. 

 Page 223. 



Fig. 3. Enlargement of vertical section showing character of zooecial tubes and ves- 

 icles. (X15.) 



Fig. 4. Enlargement of transverse section showing zooecia with well-developed lu- 

 naria, and abundant angular interstitial cells. (X15.) 



Meekopora sp. 

 Page 224. 



Fig. 5. Enlargement showing character of zooecial apertures. (X20.) 

 Fig. 6. Portion of zoarium, natural size, showing mesathecal surface. 



Heteroirypa undata sp. nov. 

 Page 224. 



Fig. 7. Enlargement of vertical section showing abundant diaphragms and undulating 



cell walls. (X15.) 

 Fig. 8. Enlargement of transverse section. (X15.) 



