Dugongidae Gray 1821

Dugongidae Gray 1821, London Med. Repos., 15: 309.

Synonyms: Halicoridae Gray 1825 .

Genera: 2 genera with 2 species in 2 subfamilies:

Subfamily Dugonginae Gray 1821

Genus Dugong Lacépède 1799 (1 species)

Subfamily Hydrodamalinae Palmer 1895

Genus Hydrodamalis Retzius 1794 (1 species)