Hydrodamalis gigas (Zimmermann 1780)
[Manati] gigas Zimmermann 1780, Geogr. Gesch. Mensch. Vierf. Thiere, 2: 426.
Type Locality: Bering Sea, Commander Isls, Bering Isl.
Vernacular Names: Steller's Sea Cow.
Synonyms: Hydrodamalis balaenurus (Boddaert 1785); Hydrodamalis borealis (Gmelin 1788); Hydrodamalis stelleri Retzius 1794 .
Distribution: Known only from the Commander Isls, Bering Sea.
Conservation: IUCN – Extinct.
Discussion: See Forsten and Youngman (1982, Mammalian Species, 165), Domning (1978, 1996).