OONTENTS. 
VI 1 
Page 
Orthoptera ........ 218-230 
Ilymenoptera . 231-239 
Strepsiptera ....... 239 
Lepidoptera 240-256 
Hemiptera 256-262 
Thysanura 262 
Parasita 262 
Fossil Insects 263 
Arachmda 263-270 
Araneac 264 
Solifugac ........ 265 
Opiliones 267 
Acari 267— 269 
Pycnogonides 270 
Crustacea . 270 
Decapoda 270— 274 
Stomopoda ........ 274 
Amphipoda ....... 274—276 
Isopoda 276 
Myriapoda . . . . . . . 276, 277 
Entomostraca ....... 277—279 
Phyllopoda ... .... 277 
Siphonostoma ....... 278 
Cirripedia 279 
7. Annelides, by Prof. C. Th. V. Siebold . . . 280—289 
8. Entozoa, by Prof. C. Th. V. Siebold . . . 290—318 
Gordiacea 292—298 
Nematoidea 298—302 
Acanthocephala ....... 302 
Trematoda 303—313 
Cestoidea 313-314 
Cystica 314-316 
Helminthes, d. g. . . . . . . . 316 
Pseudo-Helminthes ...... 317 
9. Echinodermata, Acalepha, Polypi, and Infusoria, 
by Prof. C. Th. V. Siebold .... 319-348 
Echinodermata 319—330 
Acalephse 330—334 
Polypes . 334—343 
Foraminifera 343—348 
Infusoria ........ 343—348 
