Mammalia of Southern Brazil. 
Measurements of the relaxed skin. 
Length from end of muzzle to vent 
" of tail from vent to end of vertebrae 
Width betwe( 
" of hind limb (approximate) 195 
" of second posterior claw 005 
This cat is evidently more nearly allied to the F.jaguarondi than 
to any other known species, and I need only point out the charac- 
ters in which it appears to me to be distinct. The F. jaguar ondi'is 
evidently subject to considerable variation, but none of its forms 
approach sufficiently near to the F. braccata as to lead one to be- 
lieve in the identity of the two. I have before me the skin of the 
F.jaguarondi above referred to from Chapada. 
In what might be called structural differences I note the follow- 
ing. The feet of the F. braccata are smaller than those of the 
F.jaguarondi^ and the toes are of more equal length. The claws are 
very much smaller. Both the internal and external toes are rela- 
tively considerably shorter on both limbs in the F. jaguarondi than 
in F. braccata. The fourth anterior and second posterior claws of 
the former species measure 6 and 5 mm. respectively ; in the latter 
they measure 11 and 13 mm. respectively. The tail is rather short- 
er in the F. braccata, being less than the length of the body from the 
axilla to the vent, and only an inch in excess of the posterior legs 
extended posteriorly. The tail in the /^.y^^/zar^//^/ equals the body, 
and extends two inches beyond the limbs. This character may 
prove to be unimportant. Finally the ears in F. jaguarondi are 
broadly rounded; in F. braccata they are so prominently angular, as 
to present an apex rather less than a right angle. The fur of the 
muzzle has a truncate border, while in the F.jaguarondi the border 
presents an acute angle forwards, as it follows the superior outline 
of the nares above. 
The differences in color are as follows : 
The upper surfaces of the ears are like the top of the head in F. 
jaguarondi; in F. braccata they are of two colors in strong contrast, 
and both different from that of the head. In F. jaguarondi the in- 
