Mammalia of Southern Brazil. 133 
Burmeister (Thiere Brasiliens) refers to specimens of the M. bivit- 
lata in which the black of the dorsal regions is very much reduced 
The type specimen is not fully grown I suspect. The label has 
been lost, so that I do not know whether it was obtained at Sao Joao 
17. MyrmecophagaPsellata ' Cope. 
A skin from Chapada resembles almost exactly this species or 
sub-species, in coloration, differing only in the non-continuation of 
the median yellow dorsal stripe to the yellow of the rump. But un- 
fortunately it lacks the end of the tail so that the length of this part 
cannot be ascertained. I therefore refer it here with doubt. 
Two specimens from French Guiana are in the Museum of the 
Academy of Natural Sciences in this city. They are grizzled straw- 
color, and have no black bands or spots. The hair of the entire 
superior regions is black at the base. The tail, is as long as the head 
and body together. These animals I suppose to belong to the M. 
longicaudata of Schreber, but the tail is not twice as long as the body 
1 MVRMECOPHAGA SELLATA sp. nov. 
This species is founded on a skin which I obtained from Dr. Fritzgaertner, 
who brought it from Honduras and displayed it in the exhibit from that country at 
the World's Exposition at New Orleans. It is characterized by its long tail and 
peculiar coloration, exhibiting characters between the M. longicaudata of Wagner 
and the M. bivittata. While the tail is as long as the body in the latter, it is 
said to be nearly double that length in the former. In the iM. sellata it is at least 
equal to the head and body together, but as the extremity is wanting it may have 
been longer. The hairs on the extremity of the tail are very sparse. 
The color is characteristic. The ground is straw-color. An oblique black 
wards over the shoulder, and converges rapidly towards its fellow. They do not, 
however, meet, but each is continuous with a large black patch which covers the 
back and sides on each side of a narrow median band of the light ground-color. 
These patches extend posteriorly above to the end of the lumbar region, and then 
the boundary runs obliquely forwards on each side to the groin. This leaves the 
thighs, rump and tail of the pale ground color, regions which are black in the M. 
bivittata. The dusky color in front of the eye is very indistinct. The feet and end 
of the muzzle have been unfortunately cut off from this specimen, so that their 
characters cannot be ascertained. The length of the body to the base of the tail is 
0.400 m. ; length of tail, .515 m. 
Besides the three skins above mentioned, there are two of the M. bivittata in 
the Museum of Philadelphia, one from the Magdalena River, and one from 
Brazil. 
