XXI. 
Gtenophorae ___ ___ 
Tubulariae 
| 
— 
Stenostomae 
Craspedotae 
(Hydromedusae) 
— m 
Eurystomae Trachomedusae 
um {u 
Anthomedusae Narcomedusae 
Lepto- 
medusae 
Campanariae 
—— 
Sertulariae | Hydrocoralla 
mn mn 
Hydrozoa 
Hydropolypi 
Stammbaum der Nesseltkiere oder Unidarien. 52: 
Siphonophorae Acraspedae 
Siphonanthae (Seyphomedusae) 
Discomedusae 
Diseonanthae | 
Rhizostomae 
| 
Gubomedusae | 
I 
N | 
Semostomae 
Peromedusae 
('annostomae 
mm nm ce v 
Stauromedusae 
(Tessera) 
Coralla (Anthozoa) 
nn 
Madreporaria 
Aleyonaria 
Spongi- Actiniaria 
eola Cornularia 
Rugosa 
mn — 
Scypbostoma Procoralla 
N 
Scyphozoa 
Scyphopolypi 
— 
Hydraria 
(Archydra) 
Gastraea 
