Mollnscoidea — Orustacea. 



8 



Cap. XXIII. 59.46 Mollnscoidea (Brachiostoma). 

 Cap. XXIV. 59.47 Bryozoa. 



47 Bryozoa 



•1 Gymnolaemata 

 •2 Phylactolaemata 



47.3 Pterobranchia 

 .4 Entoprocta 



Phoronis v. 51.76. 



49 Tunicata 

 .1 Ascidîae 

 .2 Copelatae 

 •3 Monascidiae 



Cap. XXV. 59.48 Brachiopoda. 



Cap. XXVI. 59.49 Tunicata. 



49.4 Synascidiae 



.5 Pyrosoma 



.6 Salpae 



.7 Doliolum 



Cap. XXVII. 59.5 ARTICULATA. 



Cap. XXVIII. 59.51 Vermes 



61 Vermes 



•1 Helminthes, Parasiti ^ 

 .2 Platyhelminthes 

 .21 Cestodes 

 .22 Trematodes 

 .23 Turbellarii 

 .24 Nemertini 

 .3 Nematodes 

 .31 Gordiacei 

 .33 Acantbocephali 

 .35 Ghaetognathi 

 .4 Annelida 

 .5 Hirudinea 



(incl. Mesozoa, Trichoplas) 



51.6 Oligochaeta 

 .7 Polychaeta 

 .74 Gephyrea 

 .76 Phoronis 

 .78 Myzostomum 

 .8 Rotifera 

 .85 Echinoderes 

 .88 Gastrotricha 

 .89 Dinophilus 

 .9 Orthonectida 

 .95 Dieyemida 

 .99 Trichoplax, etc. 



Cap. XXIX. 59.52 ARTHROPODA. 

 Cap. XXX. 59.53 Crustacea (incl. Pantopoda et Xiphosura) 



53 Crnstacea 



•1 Entomostraca 

 .15 Pantopoda 

 .2 Phyllopoda 

 .23 Branchiopoda 

 .24 Cladocera 

 .3 Ostracoda 

 .4 Copepoda 

 .45 Parasita 

 .5 Cirripedia 



.6 Malacostraea, Leptostraea 

 • 7 Arthrostraca 

 .71 Amphipoda 



53.72 Isopoda 

 .8 Thoracostraca 

 .81 Cumacea 

 .82 Stomapoda 

 .83 Schizopoda 

 .84 Deeapoda 

 .841 Macrura, Anomura 

 .842 Brachyura 

 .9 Gigantostraea 

 .91 Eurypterida 

 .92 Xiphosura 

 .93 Trilobita 



Im allgemeinen. 



