EXPLANATION OF PLATE XXIV. 



MEMBRANIPORA NEMATOPOROIDES Ulrich and Bassler n. sp., p. 336 



1-2. Fragments of two zoaria, (x8). 



Vincentown limesand; Vincentown, (154). 



MEMBRANIPORA JERSEYENSIS Ulrich and Bassler n. sp., p. 336 



3. Surface of zoarium, (x24). 



Vinceniown limesand; Vincentown, (154). 



MEMBRANIPORA PERAMPLA Gabb and Horn, p. 337 



4. Surface of zoarium, (x2). 



Vincentown limesand; Vincentown, (154). 



PYRIPORA IRREGULARIS Gabb and Horn, p. 337 



5. View of a zoarium attached to another bryozoan, (x8). 



Vincentown limesand; Vincentown, (154). 



PLANICELLARIA OCULATA ( D'Orbigny) , p. 338 



6-7. Views of two fragments of zoaria, (x8). 



Vincentoivn limesand; Vincentozvn, (154). 



PLANICELLARIA CYUNDRICA (Gabb and Horn), p. 339 



8. View of a fragment of a zoarium, much enlarged. (After 



Gabb and Horn.) 



Vincentown limesand. 



ESCHARINELLA ALTIMURALIS Ulrich and Bassler n. sp., p. 339 



9. Surface of zoarium, (x3). 



10. Part of the surface of zoarium, (x24). 



Vincentown limesand; Vincentown, (154}. 



CRIBRILINA SAGENA (Morton), p. 340 



11. View of a fragment of a zoarium, (x2). 



12. Surface of the zoarium, much enlarged. (After Gabb and 

 Horn.) 



Vincentown limesand; Vincentozvn, (154}. 



MEMBRANIPORELLA ABBOTTI (Gabb and Horn), p. 342 



13. Surface of zoarium, much enlarged. 



14. Surface of zoarium described as Reptescharipora marginata 



by Gabb and Horn, much enlarged. (Both figures after 

 Gabb and Horn.) 



Vineentown limesand. 



