336 ANIMALS OF NEIGHBOURHOOD OF EGA. Cuap. XII. 
frequently found in the forests lying opposite to the mouth of the river 
which leads to Fonteboa, and ranges thence to the banks of the Uati- 
parana, the most westerly channel of the Japurd, situated near Tunantins. 
Beyond that point to the west there is no trace of either the red or the 
white form, nor of any other allied species. Neither do they pass to the 
eastward of the main mouth of the Japurd, or to the south shore of the 
Solimoens. How far they range northwards along the banks of the 
Japura, I could not precisely ascertain ; Senhor Chrysostomo, however, 
assured me that at 180 miles from the mouth of this river, neither white 
nor red Uakari is found, but that a third, black-faced and gray-haired 
species takes their place. I saw two adult individuals of Brachyurus 
rubicundus at Ega, and a young one at Fonteboa; but was unable to 
obtain specimens myself, as the forests were inundated at the time I 
visited their locality. I was surprised to find the hair of the young 
animal much paler in colour than that of the adults, it being of a sandy 
and not of a brownish-red hue, and consequently did not differ very 
much from that of the white species ; the two forms, therefore, are 
less distinct from each other in their young than in their adult states. 
The fact of the range of these singular monkeys being so curiously 
limited as here described, cannot be said to be established until the 
country lying between the northern shore of the Solimoens and New 
Granada be well explored, but there can be no doubt of the separation 
of the two forms in the Delta lands of the Japura, and this is a most 
instructive fact in the geographical distribution of animals. 
The Parauaci Monkey.—Another Ega monkey, nearly related to the 
Uakaris, is the Parauacti (Pithecia hirsuta), a timid inoffensive creature, 
with a long bear-like coat of harsh speckled-grey hair. The long fur 
hangs over the head, half concealing the pleasing diminutive face, and 
clothes also the tail to the tip, which member is well developed, being 
eighteen inches in length, or longer than the body. The Parauacti is 
found on the ‘terra firma” lands of the north shore of the Solimoens, 
from Tunantins to Peru. It exists also on the south side of the river, 
namely, on the banks of the Teffé, but there under a changed form, 
which differs from its type in colours about as much as the red differs 
from the white Uakari. This form has been described by Dr. Gray as 
a distinct species under the name of Pithecia albicans. The Parauacti 
is also a very delicate animal, rarely living many weeks in captivity ; but 
any one who succeeds in keeping it alive for a month or two, gains by 
it a most affectionate pet. One of the specimens of Pithecia albicans. 
now in the British Museum was when living the property of a young 
Frenchman, a neighbour of mine at Ega. It became so tame in the 
course of a few weeks, that it followed him about the street like a dog. 
My friend was a tailor, and the little pet used to spend the greater part 
of the day seated on his shoulder, whilst he was at work on his board. 
It showed, nevertheless, great dislike to strangers, and was not on good 
terms with any other member of my friend’s household than himself. 1 
saw no monkey that showed so strong a personal attachment as this 
gentle, timid, silent little creature. The eager and passionate Cebi seem 
to take the lead of all the South American monkeys in intelligence and 
docility, and the Coaité has perhaps the most gentle and impressible 
