PLATE VII. 



FIG. 



1. Lithodomus phosphaticus, Kpng., Potton. 



2. Modiola arcadiformis, Kpng., Potton. 



3. Megerlia (Kingena] rhomboidalis, Kpng., Brickhill. 



4. Waldheimia Bonneyi, Kpng., Brickhill. 



5. Serpula lophioda, Goldfuss, Upware. 



6. Serpula rustica, Sby., Upware. b, section of same. 



7. Serpula articulate/ , Sby., Upware. 



8. Vermicularia polygonalis, Sby., Upware. b, section of tube. 



9. Cidaris, sp. nov., spine of, Upware. 



10. Peltastes Wrightii, Desor, Upware. 



11. Salenia hieroglyphlca, Kpng., Brickhill. 



12. Entalophora dendroidea, Kpng., Upware. 12 b, a branch mag- 



nified. 



13. Melicertites Upwarensis, Kpng., Upware. 13 b, a branch enlarged. 



14. Ceriopora (fteptonodicava) nodosa, Kpng., Upware. 



15. Reptocea lobosa, Kpng., Brickhill. 15 b, magnified. 



16. Heteropora (Nodocrescis) annulata, Kpng., Upware. 16 b, the 



surface magnified. 



17. Heteropora (Multicrescis) arbuscula, Kpng., Upware. 17 b, c, 



branches magnified. 



18. Heteropora major, Kpng., Upware. 18 b, a branch magnified. 



19. Waldheimia Bonneyi, Kpng., Brickhill. 



