CONTENTS 
xm 
CHAPTER XLVII.— ORDER OF TROUT AND SALMON 
Page 
Salmon Family 396 
Subdivision of North American Trouts and 
Charrs 397 
North American Trout 
The Salmon Group 
American Salmon 
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ISOSPONDYLI 396 
. 397 
. 400 
. 400 
CHAPTER XLVIIL— ORDER OF FLYING-FISHES 
CHAPTER XLIX.— ORDER OF SOLID-JAW FISHES . 
CHAPTER L.— ORDER OF SUCKERS AND MINNOWS 
CHAPTER LI— ORDER OF HALF-GILLED FISHES 
CHAPTER LIE— ORDER OF CATFISHES 
CHAPTER LIIL— ORDER OF FLAT-FISHES . 
CHAPTER LIV— ORDER OF FOOT-FISHES . 
CHAPTER LV.— ORDER OF EELS 
CHAPTER LVI.— ORDER OF PIPE-FISHES AND SEA-HORSES 
CHAPTER LVIL— ORDER OF THE DOGFISH 
CHAPTER LVIIL— ORDER OF GAR-FISHES, OR GANOIDS 
CHAPTER LIX.— ORDER OF STURGEONS . 
CHAPTER LX.— ORDER OF THE PADDLE-FISH . 
CHAPTER LXL— ORDER OF THE CHIMERAS 
CHAPTER LXIL— ORDER OF SHARKS .... 
CHAPTER LXIII.— ORDER OF RAYS AND SKATES . 
CHAPTER LXIV.— LOWEST CLASSES OF VERTEBRATES 
Lampreys 437 I Lancelets . 
SYNENTOGNATHI 409 
. PLECTOGNATHI 410 
PLECTOSPONDYLI 412 
. HEMIBRANCHII 415 
NEMATOGNATHI 416 
HETEROSOMATA 41S 
PEDICEL AT I 420 
APODES 421 
. LOPHOBRANCHI 423 
HALECOM OR PH I 424 
GIN GLY MODI 425 
GLANIOSTOMI 427 
. SELACHOSTOMI 429 
CHIM AERO I DEI 431 
. SQUALI 432 
. RAIAE 434 
437 
438 
