Molluscoidea — Crustacea. 



Cap. XXIII. 59.46 Molluscoidea (Brachiostoma). 

 Cap. XXIV. 59.47 Bryozoa. 



47 Bryozoa 



.1 Gymnolaemata 

 •2 Phylactolaemata 



49 Tanicata 

 .1 Ascidiae 

 .2 Copelatae 

 •3 Monascidiae 



47.3 Pterobranchia 

 .4 Entoprocta 



Phoronis v. 51.76. 



Cap. XXV. 59.48 Brachiopoda. 



Cap. XXVI. 59.49 Tunicata. 



49.4 Synascidiae 

 .6 Pyrosoma 

 •6 Salpae 

 .7 Doliolum 



Cap. XXVII. 59.5 AETICULATA. 



Cap. XXVIII. 59.51 Vermes 



51 Terines 



•1 Helminthes, Parasiti ^ 



•2 Plaftyhekninthes 



.21 Cestodes 



.22 Trematodes 



.23 Turbellarii 



.24 Nemertini 



•3 Nematodes 



.31 Gordiacei 



.S.'i Acanthocephali 



.35 Chaetognathi 



.4 Annelida 



•5 Hirudinea 



(incl. Mesozoa, Trichoplax), 



51.6 Oligocbaeta 

 .7 Polychaeta 

 .74 Gephyrea 

 .76 Phoronis 

 .78 Myzostomum 

 .8 Rotifera 

 .86 Echinoderes 

 .88 Gaatrotricha 

 .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 Cladooera 



.3 Ostraeoda 



•4 Copepoda 



.45 Parafiita 



.5 Cirripedia 



.6 Maiacostraca, Leptostraca 



•7 Arthre.straca 



•71 Amphipoda 



53.72 Isopoda 



.8 Thoracostraca 



.81 Gumacea 



.82 Stomapoda 



.83 Sehiaoi>oda 



.84 Deeapoda 



.841 Maerura, Anomura 



.842 Brachyura 



.9 Gigantostraca 



.91 Eurypterida 



.92 Xiphosura 



.93 Trilobita 



* Im allgemeinen. 



