8 ERY THROCEBUS 
throat, chest, inner side of limbs and abdomen grayish white; tail 
above like back growing gradually paler to tip which is cream buff; 
beneath buff. 
Measurements. Total length, 1,115; tail, 575; foot, 135. 
Schreber in the volume of plates accompanying his work, on plate 
XVI B gives a figure of a red monkey evidently an EryTHROCEBUS 
which he names Simia rufa. If the coloring is correct, (there is no 
description), this is quite distinct from E. patas, The head and upper 
parts are red as are also the thighs, but it differs from E. Ppatas in the 
black superciliary line not going on sides of head, and having a white 
line behind it. The under parts and inner side of arms to elbows and 
legs are white, but inner side of forearms are buff; sides of face and 
under parts, together with hands and feet are white, tail red like back 
and thighs, but the end is black. I do not know any species that is like 
this figure, and must place it among those that are undeterminable. 
Wagner makes it the same as paTas, but if color is a criterion, and 
allowing for all the defects of color shown in Schreber’s figures, this 
one cannot be considered the same as paTAS. The figure is drawn and 
colored in a much superior manner than is seen in the usual run of 
Schreber’s plates, and was evidently done from an actual specimen, 
and not copied from some drawing. 
Bennett in his “Gardens and Menagerie Delineated” gives the 
following account of this monkey: “In its native woods of Senegal, the 
Patas, as it is denominated by the natives, associates in large troops, 
which according to De la Brue, are in the habit of uniting together in 
the common cause against an enemy. As-he passed along the river 
with his party, in boats, they descended from the tops of the trees and 
advanced to the extremity of the lower boughs, for the purpose of 
examining more closely the objects below. Having, for some time, 
attentively watched the boats, and no longer satisfied with remaining 
merely spectators, they began a system of offensive operations, casting 
dry branches and other missiles at the party, who in return, fired and 
killed several of the assailants. Upon this, the survivors began to utter 
the most frightful cries, and undauntedly redoubled their effort at 
annoyances ; some gathered stones, others sticks, and various missiles 
for the purpose of hurling them at their enemies; and it was not until 
severely taught the inequality of the contest, that they terminated it by 
a retreat. 
