Quadktjmana. MAMMALIA. Quadbumana. xxi 
is elongated in most instances. The tail is not ringed. 
'J’he hair of the neck is elongated. The lower incisors 
are short and truncated. 'I’he canines are conical. 
THE PINCHE {(Edipus This delicate little 
creature is about eight inches in length, its tail being 
about twelve more. Its voice is soft and gentle, and 
is compared to the twittering of a bird — hence, prob- 
ably its name, titi. 
GEOFFROY’S (EDIPUS {(Edipus geoffroyi).—'\'\\\s, 
is the Midas oedipus of Spix. It is gray-brown. 
'I’he liair is soft, blackish at the base. The nape, 
back of the neck and base of tail, chestnut-brown. 
The crest, throat, chest, fore-legs and front of hind 
legs, white. The end of tail black. Salvin found 
it in Panama. 
Midas. 
This genus has the face and forehead hairy. The 
hair of the head is like that of the body. The ears 
are large, naked and devoid of tuft. The incisors on 
lovver jaw short and truncated. The canines conical. 
The tail is black, and has no rings. 
WHISKERED MIDAS [Midas mystax). — ^This spe- 
cies and the two following from one group, having 
the lower lip white, while the others have black nose 
and white whiskers ; it was described by Spix, and 
located in the Upper Amazons and Peru. It is 
black, with back and thigh brownish-washed ; beneath, 
it is dull black. Nose, and upper and lower lip, with 
a broad tuft of long white hairs — this latter character 
may have suggested the term mystax. Gray refers to 
a Midas pileatus of Geoffroy, which is “ Brown, reddish- 
washed, with limbs and tail black ; the crown bright 
red, nose and lips white.” 
RED-BELLIED MIDAS [Midas labiatus). — This is 
black, with the hinder part of the back washed with 
gray. Hinder part of the chest, belly and inside of the 
litnbs and under side of the base of the tail, rufous. 
Tip of nose, and edges of the upper and lower lip, white. 
Bates locates them on the north side of the Amazon. 
THE CROWNED MIDAS [Midas vvfiventer.)—i:\iQ 
specific name indicates a rusty belly, and the color 
bears it out. The general complexion is black ; 
the hinder part of the back is washed with gray. 
Hinder part of the chest, belly and inside of limbs 
and under side of base of the tail, are rufous, d’ip of 
the nose and the edges of the lips, white. The crown 
has a rufous spot, and the nape is gray. It is the 
M. elegantulus of Slack. 
WHITE-CHEEKED MIDAS [Midns leucogenys).— 
This is black, with the outside of hind limbs washed 
grayish. The face is black, with a large triangular 
white spot under each cheek. M. nigricollis of Spix 
is near this. 
THE BROWN-HEADED MIDAS [Midas flamfrons). 
Yellow fronted, literally, is this species, according to 
the specific name. Its head is a pale brown, the 
hinder part of back being rather mottled with white. 
Its general color is black. 
A male is described having the outside of the 
limbs bright rufous-washed ; the under side of body 
and inside of limbs, red brown. The female has 
outside of limbs and under part of body, blackish. 
Bates saw it in Brazil. In the Paris Museum there 
are two species, Mr rufoniger, Geoffroy, Brazil, and 
M. devillii, Geoffroy, Peru. 
Midas nigrifrons is another of Geoflfroy’s, from 
Gastelnnu's Expedition to South America. M.illigeri, 
is described by Pucheran, Colombia. M. fuscicollis 
is by Spix, from Bolivia. These varieties are more 
or less like the M. flavifrons. 
THE TAMARIN [Midas Ursulas'). — This is the one 
most familiar to us. Buffon called it Tamarin negre, 
Linnaeus, Simia midas, Geoff, M. rufimanus. Bates 
says these Monkeys are never seen in large flocks ; 
three or four sometimes congregate. It seems to be 
less afraid of Man than any other Monkey. Its mode 
of progression is like that of the Squirrel, confining 
itself to the large boughs of the trees on which it 
travels. Its curiosity is sure to get the better of it, 
and when met with, italways stops and gazes intently 
at the intruder. Its expression is pleasing and intel- 
ligent; and this is due largely to its facial angle, 
which is 60'^. The quick movement of its head, and 
the way they have of inclining the head to one side 
as they listen, gives them a knowing expression. 
This species is black, with hinder part of back rather 
mottled with grayish-white. One variety has black 
hands ; another has yellow or orange hands. 
Seniocebus. 
fi'his genus has the head naked in front. The 
hinder part of the head is covered with short hairs. 
I’he ears are bald and exposed. The tail is not ringed. 
The lower incisors are short and truncated. 'I'he 
canines are conical. 
PARTI-COLORED MIDAS {Seniocebus hicolor) has a 
gray coat, brown punctulated. The back of the head, 
neck, chest and fore-legs are white. 'I’he tail is black 
above, and brownish beneath and at the tip. In the 
young the face is hairy, with naked forehead. It is the 
Midas bicolor of Spix, ffidipus titi, junior, of Lesson, 
and Hapale bicolor of Wagner. Habitat Brazil. 
Micoella. 
'I'his genus is represented by large and naked ears. 
'I'he conch of the ear is large, covered both inside and 
outside with elongated hairs, which form a fringe on 
the circumference, but not a pencil. The tail is pale, 
but not annulated. The lower cutting-teeth are 
elongate and cylindrical, the two outer as long as the 
canines, the two middle rather shorter, and equal. 
“ 'I’his genus differs from Mico in the ears being large, 
roundish, flesh colored, covered inside and out with 
distinct, rigid, expanding hairs, which form a double 
fringe on the circumference.” 
Micoella sericeus has white fur, soft and silky. 'I’he 
legs, feet and tail are a pale yellowish ; the ears round- 
ish, large and flesh colored. Found in Brazil by Nat- 
terer. 'Phis is the Hapale argentea of Sclater. In a 
later mention Sclater gives this as Hapale chrysoleucos. 
THE WHITE AND GOLD MICO [Micoella. chryso- 
leueos). — In this the fur is yellowish-white. 'I’he fore 
and hind legs, the belly and tail, are pale chestnut- 
brown. 'Phis is the Hapale chrysoleucos of Sclater. 
^ Proc. Zoo. Soc., 1869. 
