Inhaltsverzeichniss. 



IX 



Seite 



Polypomedusae 206 



Hydromedusae 209 



Eleutheroblasteae .... 212 



Hydroeoralliae 



Tubulariae 213 



Campanulariae 



Trachymedusae 214 



Siphonophorae 



Physophoridae 218 



Physalidae 220 



Calycophoridae 



Discoideae 221 



Seyphomedusae 



Calyeozoa 227 



Marsupialida .'..... 228 



Discophora 229 



Ctenophora 231 



Echinodermata, Stachelhuter 235 



Crinoidea 252 



Tesselata 254 



Articulata 



Asteroidea 256 



Stelleridea 258 



Ophiuridea 259 



Echinoidea 260 



Cidaridea ' 261 



Clypeastridea 262 



Spatangidea 



Holothurioidea 



Pedata 264 



Apoda 



Vermes, Wrmer 268 



Platyhelminthes 273 



Turbellaria 



Rhahdocoela 277 



Dendrocoela 278 



Trematodes 280 



Distomeae 284 



Polystomeae 285 



Cestodes 288 



Nemertini 300 



Enopla 303 



Anopla 



Nemathelminthes 304 



Nematodes 305 



Acanthocephali 319 



Annelides 322 



Chaetopoda 326 



Polychaetae 332 



Seite 



Errantia 336 



Sedentaria 338 



Oligochaetae 340 



Terricolae 342 



Limicolae 343 



Gephyrei 



Chaetifera 346 



Achaeta 349 



Hirudinei 350 



Kotatoria 356 



Arthropode, G 1 i e d e r f s s 1 e r . . 360 



Crustacea 366 



Entomostraca 370 



Phyllopoda 



Branchiopoda 372 



Cladocera 374 



Ostracoda 376 



Copepoda 381 



Eucopepoda 388 



Branehiura 389 



Cirripedia 391 



Pedunculata 396 



Operculata 397 



Abdominalia 



Apoda 398 



Rhizocephala 



Malacostruca 



Arthrostraca 400 



Amphipoda 402 



Isopoda 406 



Thoracostraca 411 



Cumacea 418 



Stomatopoda 420 



Schizopoda 422 



Deeapoda 424 



Macrura 426 



Brachyura 



Merostomata 428 



Xiphosura 



Arachnoidea 433 



Linguatulida 436 



Acarina 4."!7 



Araneida 445 



Tetrapneumones .... 450 



Dipneumones 



Phalangiida 451 



Pedipalpi 453 



Scorpionidea 454 



Pseudoseorpionidea .... 456 



Solifugae 457 



