Description
Русский: Иллюстрация из книги И. Н. Березина Ледяной плен.
Date 1907
Source http://dlib.rsl.ru/01003732092
Author Johann Friedrich von Brandt
Source: https://commons.wikimedia.org/wiki/File:%D0%9B%D0%B5%D0%B4%D1%8F%D0%BD%D0%BE%D0%B9_%D0%BF%D0%BB%D0%B5%D0%BD_%D1%81._097.png

Steller's sea cow (Hydrodamalis gigas) is an extinct species of sirenian that was found exclusively around the Commander Islands, which are situated in the Bering Sea between Alaska and Russia. Its closest living relative is the dugong (Dugong dugon), which is the sole surviving member of the Dugongidae, of which Steller's sea cow was also a part. It was among the largest mammals other than whales to have existed into the Holocene epoch, reaching weights of 8–10 metric tons and lengths of 9 metres. Order: Sirenia, Family: Dugongidae, Subfamily: Hydrodamalinae, Genus: Hydrodamalis, Species: Hydrodamalis gigas Zimmermann, 1780
Synonyms:
Hydrodamalis stelleri Retzius, 1794
Rytina manatus borealis Illiger, 1811
R. borealis Illiger, 1815
R. cetacea Illiger, 1815
R. stelleri Desmarest, 1819
R. borealis Cuvier, 1836
R. stelleri Burmeister, 1837
R. gigas Gray, 1850
Manati gigas Zimmermann, 1780
Manati balaenurus Boddaert, 1785
Manati borealis Link, 1795
Trichechus manatus borealis Gmelin, 1788
Trichechus borealis Shaw, 1800
Sirene borealis Link, 1794
Nepus stelleri Fischer, 1814
Stellerus borealis Desmarest, 1822
Haligyna borealis Billberg, 1827
Manatus gigas Lucas, 1891