Molluscoidea — Orustacea. 



8 



47 Bryozoa 



•1 Gymnolaemata 

 •2 Phylactolaemata 



Cap. XXIII. 59.46 Molluscoidea (Braôhiostoma). 

 Cap. XXIV. 59.47 Bryozoa. 



47.3 Pterobranchia 



,4 Entoprocta 



Phoroni8 v. 51.76. 



49 Tunicata 



•1 Ascidiae 

 .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 ARTICULAT A. 



Cap. XXVIII. 59.51 Vermes 



51 Vermes 



.1 Helminthes, Parasiti 1 

 Platyhelminthes 

 Cestodes 

 Trematodes 

 Turbellarii 

 Nemertini 

 Nematodes 

 Gordiacei 

 Acanthocephali 

 Chaetognathi 

 Annelida 

 Hirudinea 



.2 



.21 



.22 



.23 



.24 



.3 



.31 



.33 



.4 



.5 



(incl. Mesozoa, Trichoplax) 

 51.6 Oligochaeta 



.7 Polychaeta 



.74 Gephyrea 



.76 Phoronis 



.78 Myzostomum 



.8 Rotifera 



.85 Echinoderes 



.88 Gastrotricha 



.89 Dinophilus 



.9 Orthonectida 



.95 Dicyemida 



.99 Trichoplax, etc. 



Cap. XXIX. 59.52 ARTHROPODA. 

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



53 Crustacea 



.1 Entomostraca 

 .15 Pantopoda 

 .2 Phyllopoda 

 .23 Branchiopoda 

 .24 Cladocera 

 •3 Ostracoda 

 .4 Copepoda 

 .45 Parasita 

 •5 Cirripedia 



.6 Malacostraca, Leptostraea 

 .7 Arthrostraca 

 .71 Amphipoda 



53.72 Isopoda 

 .8 Thoracostraca 

 .81 Cumacea 

 .82 Stomapoda 

 .83 Schizopoda 

 .84 Decapoda 

 .841 Macrura, Anomura 

 .842 Brachyura 

 .9 Gigantostraca 

 .91 Eurypterida 

 .92 Xiphosura 

 .93 Trilobita 



1 Im allgemeinen. 



