Alphabetical Listing of Species within this Taxa Group:

species     Hydra canadensis		T4017151
species     Hydra circumcincta		T4017153
species     Hydra hymanae		T4017154
species     Hydra japonica		T4017155
species     Hydra oligactis		T4017156
species     Hydra oxycnida		T4017157
species     Hydra robusta		T4017158
species     Hydra sinensis		T4017160
species     Hydra utahensis		T4017161
species     Hydra viridissima		T4017162
species     Hydra vulgaris		T4017163
species     Hydra zhujiangensis		T4017164