376 Zoological Society. 
hitherto unnoticed in the catalogues; I have therefore sent a short 
description of them to the Society. 
Mycertes patuiatus (Mantled Howler). 
Black brown ; hair of the middle of the back and upper part of the 
sides yellow brown, with black tips; of the lower part of the sides 
elongate brownish yellow, forming a kind of mantle on each side. 
Hab. Caraccas. 
The hair of the forehead short, reflexed, forming a slight crest 
across the middle of the head; of the back of the head rather longer ; 
of the cheeks few, scattered, short and greyish; of the hinder part 
of these rather longer than those on the rest of the head, and form- 
ing a slight beard, which is more distinct in the males; the lower 
part of the hairs on the shoulders is sometimes yellowish. 
Scrurus porsatis (Black-backed Squirrel). 
White, hairs black, with, more or less, long white tips; the eye- 
brows, back of the head, nape and middle of the back brownish black, 
forming a very broad, well-defined dorsal streak. 
Hab. Caraccas. 
The black of the hairs of the sides of the body and tail show through 
the general white colour ; the black occupies all except the tip of the 
hairs. The hairs of the lower part of the legs and feet are white to 
the base; ears rounded, not bearded, and with scattered hairs. 
This may be only a variety of some other American species, but 
the two specimens which were sent home were exactly alike. 
4. DescripTION OF A NEW SPECIES OF HERPESTES, FROM ABYSSINIA. 
By J. E. Gray, Ese., F.R.S. src. 
Mr. F. H. Hora having kindly presented to the Museum a specimen 
of a male Herpestes which he lately caught in Abyssinia, and as it 
is different from any of the species of the genus described by Dr. Rip- 
pell in his Fauna of that country, original specimens of which are in 
the British Museum collection, I have the pleasure of laying a short 
description of it before the Society. 
HerpesTEs ocHraceus (Ochraceous Herpestes). 
Pale brownish yellow, very minutely mixed or punctated with a 
darker tint; chin, throat and under part paler, not punctated ; end of 
tail bright yellow, with an elongated black tip. 
Hab. Abyssinia. 
The hair of the back short, yellow, with a short blackish base and 
a narrow dark brown subterminal band ; of the throat and under part 
of the body longer uniform pale yellow, with a short dark band at 
the base ; of the lower half of the tail longer pale yellow, with three 
or four rather narrow, equidistant darker bands; of the end of the tail 
uniform bright yellow, and of the hinder end all black, forming a 
terminal tuft. Ears rather large, rounded, covered with short close- 
pressed hairs. The soles of the hind-feet bald to the heels. 
The skull is rather elongate and narrow ; the false grinders are 3-3, 
