EXPLANATION OF PLATE XXV. 



MEMBRANIPOREU-A DISTANS (Gabb and Horn), ................. .' ---- p. 344 



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



Horn.) 



Vincentown limcsand. 



REPTESCHAREI,UNA PROUFERA Gabb and Horn, ......... .............. p. 346 



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



Horn.) 



Vincentoivn limesand. 



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



3. Fragment of zoarium, (x24). 



Vincentown limesand; Vincentown, (154). 



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



4. Fragment of a zoarium, (x24). 



Vincentown limcsand; Vincentown, 



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



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



7. Surface of zoarium, (x3). 



Vincentown limesand; Vincentown, (154). 



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



8. Surface of zoarium, (x24). 



Vincentown limcsand; Vincentown, 



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



9. Surface of zoarium, (x24). 



Vincentown limesand; Vincentozvn, (154). 



930 



