CONTENTS ix 



CHAPTER LI 



PAGE 



ORDER OF TROUT AND SALMON . . ISOSPONDYLI 218 



SALMON FAMILY . 218 



SUBDIVISION OF NORTH AMERICAN TROUT AND CHARRS . . . 220 



THE SALMON GROUP 228 



AMERICAN SALMON 229 



CHAPTER LII 

 ORDER OF FLYING FISHES . . . SYNENTOGNATHI 252 



CHAPTER LIII 

 ORDER OF SOLID-JAW FISHES . . . PLECTOGNATHI 254 



CHAPTER LIV 



ORDER OF SUCKERS, CARP, AND MINNOWS 



PLECTOSPONDYLI 257 



CHAPTER LV 

 ORDER OF HALF-GILLED FISHES . . HEMIBRANCHII 265 



CHAPTER LVI 

 ORDER OF CATFISHES NEMATOGNATHI 268 



CHAPTER LVII 

 ORDER OF FLATFISHES HETEROSOMATA 273 



