xii CONTENTS 



Page 



CHAPTER XXXVI.— ORDER OF CROCODILES AND ALLIGATORS CROCODILIA 317 



Page I Crocodile Family ..... 319 



Synopsis of the Cuocodilians . . . 317 I American Species op Crocodilians . . 320 



CHAPTER XXXVII— ORDER OF TORTOISES, TERRAPINS, AND TURTLES 



CHELONIA 323 



Synopsis op the Order of Tortoises and 



Turtles 324 



Tortoise Family ...... 324 



Mud-Terrapin Family' 326 



Smooth-Shelled Terrapins .... 326 



Snapping Terrapins 328 



Soft-Shelled "Turtles" .... 329 

 Hard-Shelled Sea Turtles . . . 330 



Leathery-Shelled Sea Turtles . . . 331 



CHAPTER XXXVIII.— ORDER OF LIZARDS LACERTILIA 333 



CHAPTER XXXIX.— ORDER OF SERPENTS OPHIDIA 337 



General Characters of Serpents . . 337 

 Food of Serpents ..... 33S 



Popular Questions and Misapprehensions 339 

 Largest Species of Serpents . . . 340 



Harmless Snakes of the United States . 343 

 Poisonous Snakes op North America . 347 

 Species of Rattlesnakes .... 349 

 Snake Poisons, and their Treatment . . 353 



BOOK IV— AMPHIBIANS 



CHAPTER XL.— INTRODUCTION TO THE CLASS OF AMPHIBIANS . . . .359 



General Characters of Amphibians . . 359 | Bird's-Ey'e View of the Amphibians . . 360 



CHAPTER XLL— ORDER OF FROGS AND TOADS . . . EC AV DAT A 361 



Family of Water Frogs .... 362 I Toad Family 364 



Tree-Frog Family 363 I Tongueless Frogs 364 



CHAPTER XLIL— ORDER OF TAILED AMPHIBIANS .... VRODELA 366 



Family of Salamanders .... 366 

 Newts, or Tritons ..... 368 

 Family of Amphiumas 369 



Free-Gilled Salamanders .... 370 

 Two-Legged Salamanders .... 370 

 Order of Worm-Like Amphibians . . 371 



BOOK V— FISHES 



CHAPTER XLIIL— INTRODUCTION TO THE CLASS OF FISHES . . . .375 



Fishery Industries and Fish Propagation 376 I The Orders of Living Fishes . . . 378 

 Distribution of Eggs and Live Fish . . 377 I 



CHAPTER XLIV.— ORDER OF THE CONNECTING-LINK FISHES SIRENOIDEI 380 



CHAPTER XLV.— ORDER OF THE SPINY-FINNED FISHES . ACANTHOPTERI 382 



Miscellaneous Spiny-Finned Fishes . . 3SS 



Snapper Family 391 



Odd Fishes of the Spiny'-Finned Order . 392 



Basses and Sunfishes .... 3S2 



Sea-Bass Family 385 



Perch and Pike-Perch Family . . . 386 



CHAPTER XLVL— ORDER OF PIKES HAEPLOMI 394 



