A Monographic I˜nvision of Monkeys of the Genus.

either is to the Puma (JZ. concolor), Lion ('. leo) or Tiger (L. tigris).* This opinion, obviously suggested by the pattern of the skin, is confirmed by the similarity in voice between the two species. The roar, which is quite unlike that of a Lion or Tiger, may be described as a series of hoarse barking coughs, an interval of about one second separating each expiratory effort. It very much resembles the sound produced by sawing a piece of thin wood with a coarse-toothed saw. Ina female Jaguar now in the Gardens the roar is less deep-toned, and its repetition is more rapid than in a female Nepalese Leopard, but whether these differences obtain throughout the species or ave merely individual, | do not know. In any case there is no mistaking the fundamental resemblance between the sounds. And I do not think there can be any doubt that the existing Leopards and Jaguars ave descended from a common stock which in comparatively recent times ranged sufticiently far to the north to pass from Asia to North America or vice versa.