VI TABLE OF CONTENTS. 



PAGES 



CHAPTER VII. THE TYPE PLATYHELMINTHES 127-171 



The Class Turbellaria, pp. 130-143. The Class Trematoda, pp. 

 143-152. The Class Cestoda, pp. 152-161. The Class 

 Nemertiua, pp. 162-169. Synoptical Classification, pp. 

 169, 170. Literature, pp. 170, 171. 



CHAPTER VIII. THE TYPE NEMATHELMINTHES 172-183 



The Class Nematoda, pp. 173-179. The Class Acauthocephala, 

 pp. 179-182. Synoptical Classification, pp. 182, 183. Lit- 

 erature, p. 183. 



CHAPTER IX. THE ORDER ECHINODERA; THE CLASS 

 CH^TOGNATHA ; THE CLASS EOTIFERA ; THE 

 ORDER GASTROTRICHA ; AND DINOPHILUS 184-201 



The Order Echinodera, pp. 184-186. The Class Choetoguatha, 

 pp. 186-189. The Class Rotifera, pp. 189-195. The Order 

 Gastrotricha, pp. 195-198. The Genus Dinophilus, pp. 

 198-200. Synoptical Classification, p. 200. Literature, p. 

 201. 



CHAPTER X. THE TYPE ANNELIDA 202-253 



The Class Chsetopoda, pp. 204-227. The Class Hirudinea, pp. 

 228-237. The Class Gephyrea, pp. 237-243. The Class 

 Myzostornese, pp. 244-246. The Class Phorouidse, pp. 247- 

 251. Synoptical Classification, pp. 251, 252. Literature, 

 pp. 252, 253. 



CHAPTER XI. THE TYPE PROSOPYGIA 254-275 



The Class Polyzoa, pp. 255-268. The Class Brachiopoda, pp. 

 268-274. Synoptical Classification, p. 274. Literature, p. 

 275. 



CHAPTER XII. THE TYPE MOLLTJSCA 276-367 



The General Characteristics of the Type, pp. 276-284. The 

 Class Amphineura, pp. 284-293. The Class Gasteropoda, 

 pp. 293-322. The Class Scaphopoda, pp. 322-326. The 

 Class Pelecypoda, pp. 326-340. The Class Cephalopoda, 

 pp. 340-362. The Affinities of the Mollusca, pp. 362, 363. 

 Synoptical Classification, pp. 363-365. Literature, pp. 

 365-367. 



CHAPTER XIII. THE TYPE CRUSTACEA 368-434 



The General Characteristics of tlie Type, pp. 368-385. The 

 Class Entomostraca, pp. 385-403. The Class Malacostraca, 

 pp. 403-417. The Development and Affinities of the Crus- 

 tacea, pp. 417-423. Synoptical Classification, pp. 423, 424. 

 Literature, pp. 424-427. The Order Xiphosura, pp. 427- 

 434. Literature, p. 434. 



