CHAPTER II

SKELETON OF URODELA AND ANURA—SKIN—COLOUR-CHANGING MECHANISM— POISON-GLANDS—SPINAL NERVES—RESPIRATORY ORGANS—SUPPRESSION OF LUNGS—URINO-GENITAL ORGANS—FECUNDATION—NURSING HABITS— DEVELOPMENT AND METAMORPHOSIS 11

## CHAPTER III NEOTENY—REGENERATION—TEMPERATURE—GEOGRAPHICAL DISTRIBUTION 63

## CHAPTER IV STEGOCEPHALI OR LABYRINTHODONTS—LISSAMPHIBIA—APODA 78

## CHAPTER V LISSAMPHIBIA (_CONTINUED_)—URODELA 94

## CHAPTER VI LISSAMPHIBIA (_CONTINUED_)—ANURA 138

## PART II. REPTILIA {x}

## CHAPTER VII PAGE

DEFINITION AND CHARACTERS—POSITION OF THE CLASS REPTILIA IN THE PHYLUM VERTEBRATA—CLASSIFICATION—SKULL AND VERTEBRAE 277

## CHAPTER VIII PROREPTILIA—PROSAURIA—THEROMORPHA 285

## CHAPTER IX CHELONIA—ATHECAE—THECOPHORA 312

## CHAPTER X DINOSAURIA—CROCODILIA 412

## CHAPTER XI PLESIOSAURIA—ICHTHYOSAURIA—PTEROSAURIA—PYTHONOMORPHA 473

## CHAPTER XII SAURIA—AUTOSAURI OR LACERTILIA—LIZARDS 491

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