PLATE XX I I 1. 



Fig. I. Dendropora ORNATA. Hamilton group.Darien. 



2. elegantula. Hamilton group, Widder. 



3. Striatopora cavernosa. Corniferous limestone drift. 



4. Dendropora neglecta. Corniferous limestone drift. 



5. Striatopora Linn/eana. Hamilton group, Thunder Ba)^ and Widder. 



6. Supposed variety of the same species. Corniferous limestone, Falls of the 



Ohio. 



