XXI. 
Stammbaum der Nesseltliiere oder Ouidarien. 
529 
Siphonophorae 
Siphonauthae 
Disconanthae 
Ctenophorae 
Dendrocteniae 
Cannocteniae 
Craspedotae 
(Hydromedusae) 
Narcomedusae 
Acraspedae 
(Scyphom eflnsae) 
Discomedusae 
Rhizostomae 
Cubomedusae 
Semostomae 
Peromedusae 
Anthomedusae Trachomedusae 
Lepto- 
medusae 
Tubuli 
ariae 
Campanariae 
Cannostomae 
Stauromedusae 
(Tessera) 
Spongi- 
cola 
Sertul ariae 
Hydrocorallia 
Hy drozoa 
Hydra 
Hydropolypi 
Co raüa (A ntliozoa) 
Madreporaria 
Alcyonaria 
Cornularia 
Rugosa 
Aetiniaria 
Scyphostoma Proeorallia 
Scyphozoa 
Scypbopolypi 
Hydraria 
(Archydra) 
Gastraea 
Haecbel, Natürl. Schöpfungs-Gesch. II. 9. Auü. 
34 
