CONTENTS. 



xv 



Fishes (continued). Page 



Cyclopteri 258 



Lumpsucker 258 



Sucking-Fishes 258 



Remora 259 



FOOTLESS SOFT-FINNED FISHES. ORDER 



OF MALACOPTERYGII APODES 259 



Their chief characteristic 259 



Eels 259 



Their singular journeys 259 



Conger Eels 260 



Muraenae .'. 260 



Gymnpti 261 



Electric Eel, its electric apparatus 261 



TUFT-GILLED FlSHES. ORDER OF Loi-HO- 



BRANCHI 261 



Sea-Horses (Hippocampi) 261 



ORDER OF PLECTOGNATHI 262 



Gy mnodonts 262 



Jaws furnished with a species of beak ... 262 



Globe-Fishes 262 



Why so called 262 



Their curious structure 262 



Sun-Fishes 262 



File-Fishes 263 



Balistes : 263 



Trunk-Fishes 263 



DIVISION II. CARTILAGINOUS FISHES 

 ORDER CHONDROPTERYGII (with free bran- 



chiie) 263 



Sturgeons, their general form 264 



Caviar 265 



Spatularia 265 



Chimaeras 265 



(With fixed bronchia:) 265 



SLH-ORDER OF PLAGIOSTOMES 265 



Sharks 265 



White Sharks 267 



Greenland Shark 267 



Saw-Fishes 268 



Skates 268 



Torpedos 268 



SUB-ORDER OF CVCLOSTOMES 269 



The Lamprey 269 



The Sea-Lamprey 269 



The River-Lamprey 269 



The Lampern 270 



The Hag-Fishes 270 



The Ammocsetes 270 



CHAPTER XXIV. 

 SECOND CLASS OF VERTEBRATE ANIMALS. 



REPTILES 270 



Admirably adapted to the duties imposed 



on them 271 



Characters of Reptiles 272 



Eggs of Reptiles 272 



Grouped under four principal sections ... 272 



CHAPTER XXV. 



ORDER AMPHIBIA 273 



Mud-Fish 273 



Footless Amphibia 275 



Blind Worms 275 



A. wphibia wit /tout Gills 276 



Ail exception to the universality of Meta- 

 morphoses 277 



Amphibia (continued). Page 



Amphiumas 277 



Gigantic Salamander.... . 277 

 The "Hell-bender" 277 



Amphibia, i/uith permanent Gills 277 



Four Genera known Axolptus, Mono- 



branchus, Proteus, and Siren 278 



Axolotle 278 



Snake-like Proteus 278 



Its curious Branchial organs 278 



Mud Eel 279 



Batrachian A tnphibia 280 



Their Metamorphoses 280 



Batrachia divisible into two sections 281 



TAILED BATRACHIANS. URODELA 281 



Terrestrial Salamander... 281 



Great Warty Newt 282 



Smooth Newt 283 



TAILLESS BATRACHIANS. ANOURA 283 



Frogs 28^ 



Curious arrangement of their Tongue... 284 



How distinguished from Toads 284 



Tree-Frogs 284 



Toads 285 



Pipas 286 



ORDER OPHIDIA 287 



First Order of true Reptiles 287 



Their formidable attributes 287 



Family I. Water-Serpents 287 



Sea or Pelagic Serpents 288 



Fresh-water Snakes 288 



Family II. Venomous Serpents 288 



Their poison most potent 289 



Poison-fangs 290 



Poison-gland 290 



Rattlesnakes 290 



Fer-de-lance 292 



Horned Vipers 232 



Viper 292 



Family 111.- Boas 293 



Boa Constrictor, Teeth of. 293 



Special contrivance to aid deglutition ... 293 

 Anaconda 294 



Family IV. Harmless Snakes 295 



Common Ringed Snakes 295 



Family V. Double Walkers 296 



ORDER SALRIA 296 



Lizards, their resemblance to Serpents... 296 



Classification of Saurian Reptiles 297 



Saurians, their diverse habits 297 



Transition from Serpents to Lizards 298 



Slow-Worm 298 



Glass Snake 298 



True Lizards 298 



Sand Lizards 298 



Flying Lizards 300 



Scinks 3<x> 



Galliwasp 3 



Monitors 3 



Guanas 3 



Geckos 3 



Chameleons - 3 01 



Crocodiles, how distinguished 3 02 



ORDER CHELOMA 33 



Arranged in four principal Families 304 



Turtles, Structure of their Limbs 304 



Tortoise-shell 35 



Leather-backed Turtle 3 06 



Soft Tortoises 3 6 



Marsh Tortoises 36 



Land Tortoises 36 



