amœbidæ

from The Century Dictionary.

• The typical family of the Amœbœ, Amœbina, or Amœboidea, mainly represented by the genus Amœba, as distinguished from such amœboids as are members of Difflugia and Arcella, or such, other rhizopods as the sun-animalcules, as Actinophrys sol, etc.