^ n t} a l t 



b eg [engten ^anbeö 



©eite 



3oop^^ten .... 1 



S^re 6tnti)cüung in (Slaffen 3 

 ßcfle ßlaffe bcc 3oop()i;ten. 



ECHINODERMATA ... 5 



1. Asterias 6 



Asterias 7 



Ophiura 21 



Gorgonocephalus ... 25 



2. Comatuia 27 



3. Holopus 31 



4. Encrinus . • . . . — 



5. Echinua 33 



Cidaris 37 



Astropyga 40 



Echinus — 



Echinoneus 47 



Nucleolites 48 



Galerites — 



Scutella — 



Cassidulus 51 



Ananchites 52 



Clypeaster 53 



Fibularia 54 



Spatangus 56 



©dtc 



6. Holothuria .... 59 



Cladodactjla 63 



Dactylota 64 



Aspidochir . . . . ^ . — 



Sporadipus 65 



Psolus — 



Oncinolabes 66 



Stichopus 67 



Holothuria — 



Cladolabes 72 



Chiridota — 



Synapta 74 



Molpadia 76 



Zweite Drbnung. 



7. Priapulus 77 



8. Sipuuculus . . . . 78 



9. Bonellia 80 



10. Thalassema .... 81 



Thalassema — 



Echiurus — 



Sternaspis 82 



^tc ©ingeweibc^ 

 Würmer 



ENTOZOA 83 



NE3IÄT01DEA. 



