Although but two of these types have so far been definitely noted in the Congo basin (El. a. Cottoni and El. a. pumilio), Dr.
Schouteden considers it highly probable that some other of these
varieties exist there. The unique specimen of the dwarf elephant, El. a. pumilio, was
acquired in 1905 by the New York Zoological Society. While Noack, who
examined the animal in Europe in 1905, believed it was about six years
old at that time, the New York experts placed its age at from two to
three years. The following data given by Dr. Hornaday, of the
Zoological Society, show the slow growth and development of this most
interesting specimen, which is known to visitors as "Congo":
