Rytina
/rʌɪˈtiːnə/ /rɪˈtʌɪnə/(also Rhytina) Chiefly Zoology. Now rare
noun
The extinct Steller's sea cow, Hydrodamalis gigas (formerly known as Rytina stelleri).
Origin
Mid 19th century; earliest use found in Todd's Cyclopaedia of Anatomy and Physiology. From scientific Latin Rytina, former genus name from ancient Greek ῥυτίς wrinkle + scientific Latin -ina.