Source : Webster's Revised Unabridged Dictionary (1913)

Ferae \Fe"r[ae]\, n. pl. [L., wild animals, fem. pl. of ferus
   wild.] (Zo["o]l.)
   A group of mammals which formerly included the Carnivora,
   Insectivora, Marsupialia, and lemurs, but is now often
   restricted to the Carnivora.