CONTENTS 



CHAPTER VIII 



GENERAL DESCRIPTION OF THE ECHINODERMA . . 1 * 



CHAPTEE IX 



THE PELMATOZOA CYSTIDEA. .... 38 



CHAPTER X 



THE PELMATOZOA BLASTOIDEA . . . .78 



CHAPTER XI 



THE PELMATOZOA CRIXOIDEA .... 94 



CHAPTER XII 



THE PELMATOZOA EDRIOASTEROIDEA . . .205 



CHAPTER XIII 



THE ELEUTHEROZOA HOLOTHURIOIDEA . . . 217 



CHAPTER XIV 

 THE ELEUTHEROZOA STELLEROIDEA .... 237 



CHAPTER XV 



THE ELEUTHEROZOA ECHINOIDEA . . . .282 



INDEX 333 



