Ryt"i*na (?), n. [NL., fr. Gr. a wrinkle.] Zool.
A genus of large edentulous sirenians, allied to the dugong and manatee, including but one species (R. Stelleri); -- called also Steller's sea cow.
[Written also Rhytina
xb5; It is now extinct, but was formerly abundant at Behring's Island, near Behring's Straits. It was twenty-five feet or more in length, with a thick, blackish, naked skin. The last were killed in 1768 for their oil and flesh.<-- another man-made extinction -->
© Webster 1913.