KL Stammbaum der Coelenterien oder Niederthiere. 523 
Platodes (Plattenthiere) 
(Plathelminthes) 
Cestoda Ötenophorae 
(Bandwürmer) (Kammquallen) 
| I 
?. 
Trematoda 
(Saugwürmer) 
| Turbellaria x 
'  Dendrocoela . Cnidaria (Nesselthiere) 
Spongiae (Schwammthiere) a NEE 
(Porifera) Siphono- 
Silieispongiae vg i A Re 
\ ) (Staats-  Acraspedae 
Kalle | : quallen) (Seyphomedusae) 
all 2 | 
spongiae Caleispongiae | | | 
Cera- Syconidae | | 
spongiae | Craspe- 
Turbellaria »  dotae 
Psammo- | Leuconidae Rhabdocoela (Hydro- 
spongiae medusae)  « 
mn em | 
Hydro- Coralla 
AR nidae coralla (Antho- 
4 208) 
Ammoconidae Hydro- | | 
Caleolynthus | u. | | 
u — — 
Ammolynthus Hydropolypi Scyphopolypi 
Strudelwürmer | 
Turbellaria | 
—— aA 0 mn 2 
Olynthus (Gastraedis) Hydra 
(Archolynthus) | (Archydra) 
| | 
m |[———————— 
Gastraeades 
Physemaria (Gastraemon) Üyemaria 
(Prophysema) (Rhopalura) 
| 
| | 
| | | 
| | | 
Gastraea 
