ILLUSTKATIONS IN TEXT. 



PAGE 



FIG. 1. Diagram of structure of typical Bryozoon ... 9 



,, 2. Diagrams of zooecia of Bryozoa 11 



,, 3. Longitudinal section through a frond of Diastopora . . 13 

 , , 4. Base of Diastopora, showing basal Berenecoid encrustation 



and erect frond 16 



,, 5. Section through frond of Diastopora lamellosa, Mich., var. 



cervicornis, to show multiple growth . . . .17 

 ,, 6. A Diastopora giving off shoots in the condition of 



Entalophora . . . . . . . .17 



,, 7. The initial Stomatoporoid cell of a Diastopora, and 



expansion to Berenecoid condition . . . .20 

 ,, 8. Stomatopora smithi (Phil.) : part of type specimen . . 56 

 ,, 9. Transverse section across part of a zoarium of Repto- 



multisparsa, sp., showing concentric layers . . .113 

 ,, 10. Longitudinal section through half of zoarium of Spiropora 



richmondiensis (Vine) ....... 154 



, , 11. Two parts of same zoarium of Haplocecia straminea (Phil.), 



showing worn and unworn condition . . . .158 

 ,, 12. Part of zoarium of type specimen of Haplooecia straminea 



(Phil.) 160 



,, 13. Longitudinal section of zoarium of Ceriocava corymbosa 



(Lamx.), showing central axis and marginal zooecia . 164 

 ,, 14. Longitudinal section of zoarium of Ceriocava laxata, 



Greg. 165 



,, 15. Part of longitudinal section through zoarium of Multi- 



clausa kaimei, Greg 185 



16. Longitudinal section through end of branch of Terebellaria 



ramosissima, Lamx. . . . . . . .190 



,, 17. Transverse section across branch of Terebellaria ramo- 



sissima, Lamx. ........ 190 



,, 18. Longitudinal and transverse sections through Ceriopora 



globosa (Mich.) 196 



,, 19. Longitudinal and transverse sections through Heteropora 



conifera (Lamx.) ........ 205 



,, 20. Two parts of one zoarium of Heteropora conifera (Lamx.), 



showing irregularity in distribution of mesopores . . 205 

 ,, 21. Membranipora jurassica, Greg. . . . . .213 



,, 22. Onychocella flabelliformis (Lamx.) ..... 213 



