EXPLANATION OF PLATE XXV. 



MEMBRANIPORELLA DISTANS (Gabb and Horn), p. 344 



1. Surface of zoarium, much enlarged. (After Gabb and 



Horn.) 



Vincentown limcsand. 



RPTESCHARELUNA PROUFERA Gabb and Horn, p. 346 



2. Much enlarged surface of zoarium. (After Gabb and 



Horn.) 



Vincentown lime sand. 



MICROPORA PULCHRA Ulrich and Bassler n. sp., p. 347 



3. Fragment of zoarium, (x24). 



Vincentown limesand; Vincentown, (154}. 



MICROPORA CYUNDRACEA Ulrich and Bassler n. sp., p. 347 



4. Fragment of a zoarium, (x24). 



Vincentown limesand; Vincentown, (154). 



MONCPORELLA EXSERTA Ulrich and Bassler n. sp., p. 349 



5-6. Surfaces of two zoaria, (x8). 



7. Surface of zoarium, (x3). 



Vincentown limesand; Vincentown, {,154}. 



MiCROPOREWvA SPARSIPORA Ulrich and Bassler n. sp., p. 348 



8. Surface of zoarium, (x24). 



Vincentown limcsand; Vincentown, (/5^). 



MICROPORA ? VINCENTOWNENSIS Ulrich and Bassler n. sp., p. 348 



9. Surface of zoarium, (x24). 



Vincentown limcsand; Vincentown, (/5-/). 



930 



