Hippopotamidae Gray, 1821
Hippopotamus aethiopicus
Hippopotamus amphibius Linnaeus, 1758
Hippopotamus antiquus
Hippopotamus creutzburgi
Hippopotamus gorgops
Hippopotamus kaisensis
Hippopotamus laloumena
Hippopotamus lemerlei Grandidier, 1868
Hippopotamus madagascariensis Guldberg, 1883
Hippopotamus madgascariensis
Hippopotamus meltensis
Hippopotamus minor
Hippopotamus pentlandi
Hippopotamus peutlaudi
Hippopotamus sirensis
