• Webster's Revised Unabridged Dictionary
    • n Rhytina (Zoöl) See Rytina.
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Century Dictionary and Cyclopedia
    • n rhytina The typical and only genus of the family Rhytinidæ, containing Steller's or the arctic sea-cow, R. stelleri or R. gigas, which has no teeth, but horny plates functioning as such. The head is small; the tail has lateral lobes; the fore limbs are small; the hide is very rugged; the cæcum is simple, and there are no pyloric cæca; the cervical vertebræ are 7, the dorsal 19, the lumbar and caudal 34 to 37, without any sacrum. See sea-cow. Also called Stellerus and Nepus.
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Chambers's Twentieth Century Dictionary
    • n Rhytina ri-tī′na a genus of Sirenia, akin to the dugong and the manatee, once plentiful in the northern Pacific.
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Chambers's Twentieth Century Dictionary
Gr. rhytis, a wrinkle.


In literature:

The rhytina belonged to the same mammalian Order as the manatee of Florida and South America, and the dugong of Australia.
"Our Vanishing Wild Life" by William T. Hornaday
The death-year of the Rhytina race must therefore be altered at least to 1854.
"The Voyage of the Vega round Asia and Europe, Volume I and Volume II" by A.E. Nordenskieold
The rhytina, the Californian elephant seal, the great auk, and the Labrador duck have already been exterminated.
"Taxidermy and Zoological Collecting" by William T. Hornaday