EXPLANATION OF PLATE XXII. 



BISIDMONEA GABBIANA Ulrich and Bassler n. sp., p. 320 



1-2. Views of two fragments, (xs). 



Vincentown limesand; Vincentown, (154). 



IDMONEA ABBOTTI Gabb and Horn, ,. . .p. 321 



3-4. Views of two fragments, (x8). 



Vincentown limesand; Vincentown, (154}. 



FILISPARSA CONTORTILIS (Lonsdale), p. 322 



5. View of the reverse side of a fragment, (x2). 

 6-7. Views of the celluliferous sides of two fragments, (x8). 

 Vincentown limesand, Vincentown, (154). 



FILISPARSA BIFURCATA Ulrich and Bassler n. sp., p. 322 



8. View of the celluliferous side of the type specimen, (x8). 



Vincentown limesand; Vincentown, (154). 



ENTALOPHORA CONRADI Gabb and Horn, p. 323 



9. View of the type specimen, much enlarged, (after Gabb and 



Horn). 



Vincentown limesand. 



SPIROPORA CALAMUS Gabb and Horn, p. 324 



10. View of the type specimen, much enlarged, (after Gabb and 



Horn). 



Vincentown limesand. 



CLAUSA AMERICANA Gabb and Horn, p. 325 



11. View of a fragment of a colony, (x8). 



Vincentown limesand; Vincentown, (154}. 



FlUFASCIGERA MEGAERA (Lonsdale), p. 325 



12. View of a specimen natural size, seen encrusting another 



bryozoan. 



13. View of a fragment much enlarged. 



14-15. Two enlarged views showing details of structure. (All fig- 

 ures after Gabb and Horn.) 

 Vincentown limesand. 



DISCOCYTIS ECCENTRICA Ulrich and Bassler n. sp., p. 326 



16-17. Lateral views of two colonies, (x2). 



18. Upper view of a colony, (x4). 



19. Under view of a colony, (x4). 



Vincentown limesand; Vincentown, (154). 



LICHENOPORA PAPYRACEA (d'Orbigny), p. 327 



20. View of a complete zoarium attached to Onychocella digitata 



(Mort), (x8). 



'Vincentown limesand; Vincentown, (154). 



924 



