LIST OF ILLUSTRATIONS 

 IN THE TEXT 



FIG. PAGE 



xviii 



Head of Schelly ..... 



1. Suctorial Discs of Sea Lamprey and Lampern 



2. Larval Lamprey, or Pride, and Planer's Lamprey 



3. Pelvic and Anal Fins of a Sturgeon 



4. Pelvic and Anal Fins of a Trout 



5 Caudal Fin of a Trout .... 



6. Head of Adult Female Salmon 



7. Tail of Large Male Salmon 



8. Sea-Louse and Gill-Maggots of Salmon 



9. Head of Large Male Trout 



10. Vomers of Trout and Char 



11. Heads of Male and Female Char from Ben Hope 



12. Head of Scharff's Char 



13. Anterior Branchial Arches of Cole's Char and 



Coomasaharn Char .... 



14. Head of Coomasaharn Char 



15. Head of Houting . .... 



16. Upper Dentition of Smelt and Trout 



17. Anterior Branchial Arches of Allis Shad and 



Twaite Shad ..... 



18. Scale of a Silver Eel .... 



19. Gudgeon ...... 



20. Lower Pharyngeals of Rudd and Roach 



21. Bass ....... 



22. Three-spined Sticklebacks 



23. Ten-spined Stickleback .... 



24. Distribution of Carp Family 



25. Distribution of Pike Family 



26. Pleistocene Geography of the British Isles 



4 

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 22 



23 

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39 



48 



56 



74 



99 



107 



108 

 108 



125 

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132 

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