X ZOOLOGY FOR MEDICAL STUDENTS 



CHAPTER VIII 



PAGE 



ECHINODERMATA . 282 



CHAPTER IX 



Introduction to the Vertebrata : Description of the 

 Dogfish as illustrating the General Structure of 

 A Vertebrate . 291 



CHAPTER X 



Fishes . . 347 



CHAPTER XI 



Introduction to Tetrapoda : Amphibia 402 



CHAPTER XII 



Amniota : Reptilia, Aves . -419 



CHAPTER XIII 

 Mammalia , . . 436 



CHAPTER XIV 



Elements of Vertebrate Embryology 440 



INDEX 



477 



