■8 ERYTHROCEBUS 



throat, chest, inner side of Hmbs 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. patas 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. 



