PLATE XXIII. 



TURBINARIA ( ?), POUITES. 



rase. 



Figs. 1 to 3. Turbinaria ( ?) alahameiisis sp. nov 104 



Fig. 1, view of a vertical section through a cdralluiii, natural size; fig. 2, cross 

 section of a corallite, as seen in a thin section, X about '20; lig. 3, vertical section 

 of C(cnnench.vm<a and a corallite, X 4i, shows perforate sejita. 



Fids. 4 to 6. Poritcs ratnosa (Lousdalc) ISIo 



Fig. 4, copy of Lonsdale's original figmi'; fig. 5, general view of the cast of a speci- 

 men, natural size; fig. fi, cast of several calices, X 3^^. 

 All drawings made b}' Dr. J. 0. McCounell. 



254 



