LIST OF TEXT-FIGURES. 



FIG 

 1. 



10. 



11. 



12. 



13. 

 14. 

 15. 

 1(5. 



17. 



18. 

 19. 



20. 



Hybodiis htuijjia nits ; fish showing soft 

 parts 



Ditto ; restoration of skeleton ... 



Hybodus basamis; restoration of skull 



Ditto; teeth 



Ditto; fragment of trunk 



Acrodus anningite ; dentition ... 



Axteracanthus verrucosus; dorsal tin- 

 spine 



Asteracauthus semiverrucosus ; dorsal 

 fin-spine ... 



Asteracauthus granulosus ; dorsal fin- 

 spine 



Hylxobatis problematica ; section of 

 tooth, magnified 



Ptychodus ma/mm Maris; section of tooth, 

 magnified 



Lepidotus semiserratus ; restoration of 

 head 



Lepidotus mantelli; restoration of head 



Lepidotus minor ; restoration ... 



Lepidotus sp.; occipital portion of skull 



Lepidotus mantelli; transverse section 

 of skull 



Ditto ; dentition 



Ditto ; vertebrae 



Athrodon intermedius; splenial dentition 



Mesodon macropterus ; restoration 



PAGE 



4 



5 



7 



FIG 



21. 



■22. 



8 



23. 



9 



24. 



15 



25. 





26. 



16 



27. 





28. 



17 



29. 





30. 



18 



31. 



20 



32. 





33. 



21 







34. 



27 



35. 



27 





28 





38 



36. 





37. 



39 



38. 



41 



39. 



44 





48 



40. 



49 



41. 



PAGE 



Eomesodon liassicus; drawing of type 



specimen ... ... ... ... 55 



Eomesodon bariiesi; drawing of type 



specimen... ... ... ... ... 56 



Microdon radiatus ; restoration 60 



Coelodm costx ; restoration ... 65 



Ophiopsis procera ; restoration... 71 



Caturus furcatus ; restoration ... 82 



Callopterus insignis ; restoration 83 



Caturus latidens ; imperfect head ... 84 



Amiopsis dolloi ; restoration, with scales 90 



Ditto; restoration, without scales ... 91 

 Amiopsis a listen i ,• drawing of type 



specimen... ... ... ... ... 93 



Aspidorhynchus acutirostris ; restoration 95 

 Aspidorhynchus sp.; hinder portion of 



skull DO 



Pholidophorus ornatus ,• restoration ... 103 

 Pleuropholis attenuata, P. longicauda, 

 and P. serrata; drawings of type speci- 

 mens ... ... ... ... ... 114 



Pleuropholis for mosa ; restoration ... 116 



Leptolepis dubius ; restoration... ... 122 



Mthalion robustus ; restoration ... 126 

 'Mthalion valdensis ; drawing of type 



specimen ... ... ... ... 127 



Paclii/tlirisstiji* ri rtensis ,■ head 134 



Lepidotus minor ; amended restoration 140 



