Quabeumana. MAMMALIA. Quadeumana. xvii 
THE BLACK-EEONTED TEE-TEE {Callith •ix nigri- 
from) has a bristly fur, gray colored, washed with 
black. The forehead, ears, spot on each side of the 
neck, hands and feet, inside of fore-arms and leg, 
black ; chin, blackish ; back of crown and nape, 
whitish-gray. The tail is reddish, the hairs of which 
are red to the base. The young are similar. Found 
by Lord de Kothsay in Brazil. 
THE KED-BELLIED TEE,-TEE{Gallithrixoa§taneo- 
•wentr/s).— The fur is dark blackish-gray, minutely 
annulated with gray. Outside of the limbs, reddish- 
washed ; forehead, hands and feet, black. The whis- 
kers, throat and chest, belly and inside of limbs, dark 
red chestnut. Tail is black, with tip whitish-washed. 
Hairs of the tail black to the base. Habitat Brazil. 
BLACK-HANDED TEE-TEE {CalUthrix melanochir). 
The crown, throat and inside of the limbs are black, 
and gray and black, mixed. A variety has the tail 
bright red. Another has less red in the fur. It in- 
habits the province of Bahia, Brazil. 
THE GRAY TEE-TEE {Gallithrix gigo). — The crown 
is nearly all black, slightly gray-dotted. The sides of 
the face,gular band and inside of the limbs are black. 
A variety has the throat whitish. It is called by Spix, 
0. cinerescens. 
Tribe V.— NYOTIPITHECINA. 
Molars in this tribe are | f. The incisors are ver- 
tical, in a regular series with the canines. The lower 
jaw is dilated behind. Eyes are large, and nocturnal. 
Nostrils are small, close together, as in the Old World 
Monkeys. 
Nyctifithecus. 
The eyes in this genus are very large and lateral. 
The hair of the orbit is arranged like the face of an 
Owl. The septum of the nose is narrow. 'I'he ears 
are large; the claws small and weak. The spinous pro- 
cesses of the lumbar vertebrae are acutely triangular 
and incumbent. 
THE DODROUCOULI {Nyctifithecus trivicgatus ). — 
The term Nyctipithecus in this group refers to their 
nocturnal habits, meaning literally, Night-Monkey. 
The present species is the one most known. It sleeps 
during the day, drawn up like a hybernating animal, 
and sallies forth at dusk to capture and feed on in- 
sects and the smaller animals within reach. Its large 
eyes enable it to see very distinctly at night. On tlie 
head there are three very distinct black lines, which 
radiate from each other ; this has given rise to the 
specific name trivirgatus, or three-striped. 
The fur is short. The color of throat and inside 
of limbs, grayish-ash ; the chest and belly are ferrugin- 
ous. The tail is slender, cylindrical, of a blackish- 
brown, with a yellowish-brown at the under part of 
base. This is the N. vociferans of Spix, and Simia 
of Humboldt. Its habitat is recorded as Peru. 
THE YITCE {Nyctipithecus commersonii). — This 
species has black facial streaks, irregular, and con- 
fusedly marked. The side ones are linear in shape; 
the middle one, broad and lozenge-shaped ; frontal 
spots are short and white. The fur is rather long and 
thick. The color of the neck, chest, belly and inner 
VOL. I.— c. 
parts of base of limbs and tail, fulvous. Tail is cyl- 
indrical in form. It is the N. felinus of Spix, Noc- 
thora of Cuvier, Chirogaleus of Vigors, and Callithrix 
infulatus of Licht and Kuhl. 
BROAD-TAILED VITQE {Nyctipithecus lemurinus). 
The tail of this species is quite peculiar, spreading 
like that of a Squirrel ; it is depressed and broad. 
There is a rounded, white spot over each eye. The 
frontal streaks are indistinct. The fur of the body 
-and tail, elongate. Azara records that this Monkey 
is found in the Andes of New Grenada, at an eleva- 
tion of four or five thousand feet above the sea, and 
that they make the woods resound with their clamor- 
ous cries of durucuH. These creatures are called by 
some Owl-faced Night Apes, from their broad radi- 
ate faces and large eyes. By the Indians they are 
designated Ei-d. Bates saw them tamed in Brazil, 
and says that they utter a hoarse cry, like the sup- 
pressed barking of a Dog. Their habitat is in the 
neighborhood of Bogota, Colombia. 
Tribe VI.— PITHECINA. 
The molars are in this tribe f f. The incisors on 
the lower jaw are large, inclining forward, converging, 
and separated from the canines by a space. The 
lower jaw is not dilated behind. The fur is harsh 
and elongate. The claws are bent ; and the nostrils 
are far apart. 
PiTHECIA. 
This genus is characterized by having the chin 
clothed with a heavy beard, the crown with a radi- 
ated, divided wig. The head and limbs are short. 
Tail long, and covered with long hair. The septum 
of the nose is broader than the incisors. In habits 
they are slow, sad, voracious, vociferous and grega- 
rious. This is Brachyurus of Spix, and Yarkea of 
Lesson. 
THE BLACK YARKE {Pithecia leueocephala ). — 
The specific name of this indicates white-head, and 
the individuals bear it out in a degree. Gray says 
the forehead is yellow when fresh, and white when 
exposed and faded. M. Geoffrey thinks the color 
depends on the size of the specimen. 
It is an elegant creature in form, and is singularly 
decorated in the female, by a thick and long fringe of 
white hairs around the head ; the male has the same, 
but shorter. The top of the head is a deep black. 
There are such differences between the male and fe- 
male as have led naturalists to suppose they were 
separate species. On the hairs of the female thei’e 
are distinct rings, of a rusty-brown color, which give 
the whole body of fur a mottled appearance. The 
hair of the male has none. The food of these crea- 
tures is said to be wild bees, and their comb, which 
they capture with much adroitness. Their long 
hairy covering probably renders them invulnerable 
from the stings of the bees. They are called Fox- 
tailed Monkeys, on account of the beautiful Fox- 
like tail of some species ; the latter quite in contrast 
with the stub tails of the Cacajao. The body and 
tail of the Black Yarke is of a dark brown color ; 
