THE JAGUAR. 95 
A specimen killed by Captain Dawkins in 1884 measured 
5 feet 114% inches in total length ; of which 36 inches was 
occupied by the tail. In this instance, therefore, the length 
of the tail was a fraction in excess of that of the head and 
body. Another specimen, in which the tail also measured 
36 inches, had a total length of 6 feet 4 inches; while 
Sterndale gives the total length of a very large individual as 
» feet 4 inches, out of which 3 feet were taken up by the tail. 
V. THE JAGUAR. FELIS ONCA. 
mes onca,~Linn., Syst. \Nat..ed. 12,: vol. i. p. 61 (1766); 
Elliot, Monograph of Felidz, pl. v. (1878-83). 
Leopardus hernandesit, Gray, Proc. Zool. Soc. 1857, p. 278. 
Leopardus onca, Gray, op. cit. 1867, p. 264, and Cat. Carniv. 
Mamm. Brit. Mus. p. 11 (1869). 
Uncia onca, Cope, American Naturalist, vol. xxl. p. 143 
(1889). 
(Plate VIT.) 
Characters.—Size equal to, or perhaps rather superior to, that 
of the Leopard. Colour and markings generally similar to 
those of the latter, but the dark rings larger and arranged 
more definitely in groups, each ring generally enclosing one or 
more dark spots, and its enclosed light area being of the same 
hue as the general ground-colour of the fur, which is typically 
of a rich tan. On the sides of the body the rosettes are 
usually arranged in seven or eight more or less definable 
longitudinal rows. Considerable variation exists, however, 
in the coloration, specimens having been described in which 
the fur is blackish-brown, with the markings of a still deeper 
shade, while other individuals are completely black. These 
dark specimens appear to be most common in the northern 
parts of South America, whereas, in the southern portions of 
the animal’s range, a yellow or even whitish tinge not un: 
