Humboldt-Universität zu Berlin | Institut für Biologie | Test Till Ramm | collection | Cnidaria Cnidaria Hydrozoa Scyphozoa Anthozoa Anthozoa2 Anthozoa3 Hexactinia Scyphozoa Scyphomedusen Aurelia Hydrozoa Hydroidea Hydrozoa2 Hydra Hydromedusae Anthomeduse Hydrozoa obelia