Source : Webster's Revised Unabridged Dictionary (1913)

Macavahu \Ma`ca*va"hu\, n. (Zo["o]l.)
   A small Brazilian monkey ({Callithrix torquatus}), -- called
   also {collared teetee}.

Teetee \Tee"tee\, n. [Sp. tit['i].]
   1. (Zo["o]l.) Any one of several species of small,
      soft-furred South American monkeys belonging to
      {Callithrix}, {Chrysothrix}, and allied genera; as, the
      collared teetee ({Callithrix torquatus}), and the squirrel
      teetee ({Chrysothrix sciurea}). Called also {pinche},
      {titi}, and {saimiri}. See {Squirrel monkey}, under
      {Squirrel}.

   2. (Zo["o]l.) A diving petrel of Australia ({Halodroma
      wrinatrix}).