10 CONTENTS. 



PAGB 



3. SUBKINGDOM MOLLUSCANS . "... 241 



THE CEPHALOPODS 242 



THE GASTEROPODS 244 



THE LAMELLIBRANCHIATES 250 



THE BRACHIOPODS 255 



THE TUNICATES 255 



THE POLYZOANS 257 



4. SUBKINGDOM ECHINODERMS 259 



THE HOLOTHOROIDS 259 



THE ECHINOIDS 260 



THE ASTEROIDS 261 



THE CRINOIDS 263 



5. SUBKINGDOM CCELENTERATES 265 



THE CTENOPHORANS 265 



THE ANTHOZOANS 265 



THE HYDROZOANS 269 



THE SPONGES 273 



6. SUBKINGDOM PROTOZOANS 274 



THE INFUSORIANS 274 



THE RHIZOPODS 275 



THE GBEGARINIDANS 277 



IV. APPENDIX. 



TABLE OF THE ANIMAL KINGDOM 278 



INDEX AND GLOSSARY 298 



