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LIST OF WOODCUTS. 



Page 



Fig. 1. Acanthodes wardi. Restoration 2 



2. bronni. Pectoral fin 4 



3. Diplacanthus striatus. Pectoral arch and fins . . 23 



4. Parexus falcatus. Pectoral arch and fin .... 35 



5. Ptyctodus obliquus. Tooth 38 



6. Palatine teeth of Chimasridae. Diagrams of the oral 



aspect 51 



7. Mandibular teeth of Chimaeridae. Diagrams of the 



inner aspect 54 



8. Edaphodon leptognathus. Mandibular tooth ... 82 



9. Lepracanthus colei. Dorsal fin-spine 115 



10. Gyracanthus formosus. Fin-spine 142 



11. Harpacanthus fimbriatus. Spine . . . . . . 151 



12. Edestas minor. Portion of spine 152 



13. Euctenius unilateralis. Spines 155 



14. Pteraspis rostrata. Dorsal shield 160 



15. rostrata. Restoration 161 



16. crouchi. Portion of dorsal shield .... 168 



17. Cyathaspis. Outline of dorsal shield 171 



18. Cephalaspis lyelli. Outline of dorsal shield . . . 177 



19. Cephalaspis. Inferior aspect of dorsal shield . . . 178 



20. Cephalaspis. Transverse section of dorsal shield . . 179 



21. Cephalaspis lyelli. Restoration 180 



22. powriei. Outline of dorsal shield .... 183 



23. pagei. Outline and superficial ornamentation 



of dorsal shield 184 



24. murchisoni. Restoration 185 



25. murchisoni. Outline and superficial ornamen- 

 tation of dorsal shield . . J 86 



26. dawsoni. Dorsal aspect, and portion of super- 

 ficial ornamentation 192 



