LIST OF ILLUSTEATIOlSrS. XXl 



Pig. 222. Orbipora fungiformis. a and b, celluliferous and epithecated sides 

 of the type-specimen; c, celluliferous surface enlarged; d, basal 

 side, enlarged 346 



223. Pteropora pennula. a and b, Eicbwald's views of the type-specimen, 



natural size and enlarged 347 



224. Pteropora exilis. a and b, zoarium natural size, enlarged. (After 



Eichwald.) 347 



225. Stictopora scalpelliformis. a, Eicbwald's figure of the surface en- 



larged; b and c, Eichwald's original figure of the same species 348 



226. Vincularia megastoma. a and 6, type-specimen, X 1 and enlarged; 



c, cross-section of same. (After Eichwald.) 348 



