Mon'ra, a class of Protozoa (q.v.) proposed by Haeckel to include the very lowest organisms supposed to be destitute of a nucleus. As this structure has been shown to exist in forms where it was formerly denied, the title is now being abandoned. See PROTOZOA.
Mon'ra
Chambers's Encyclopaedia, Volume 7: Maltebrun to Pearson, p. 269
Source scan(s): p. 0278