52 MAMMALIA. QUADRUMANA. 



ears very small ; facial angle about 50 ; muzzle projecting ; 

 extremities proportioned to the body ; all the hands with five 

 fingers provided with nails ; tail long, strongly prehensile, 

 naked and callous below near its extremity ; hyoid bone lit- 

 tle apparent externally ; hair soft and woolly. 



L. Humboldtii, Geoff. (The Capparo.) Fur of a blackish ash-colour; 



hair long. Body upwards of two feet long ; tail a little longer 



than the body. 



Of a gentle nature, frequently standing upon its hind feet Inhabits tire banks of 

 the Rio Guaviara, South America. 



L. canus, Geoff. Silver-haired Monkey. Fur olive gray ; head, 

 hands, and tail of a red gray ; hair short Inhabits Brazil. 



Gen. 11. MYCETES, Illiger. Stentor, Geoff. Aluata^ Lacep. 

 Cebus, Erxleb. Simia, Lin. Schreb. &c. 



Incisors f , canines -J, molars f-, = 36. Canines well de- 

 veloped, triquetrous ; head pyramidal ; countenance oblique ; 

 facial angle 30. Hyoid bone ventricose, apparent externally 

 and cavernous. Four extremities pentadactyle ; tail very 

 long, strongly prehensile, naked under its extremity ; nails 

 convex and short. 



Savage apes, living in numerous troops, and making the forests resound with their 

 cries particularly at the rising and setting of the sun. They use their tail as an 

 instrument of prehension. Found from Paraguay to Guiana. 



M. seniculus t Desm. (Simia seniculus, Lin.) Red Howling Monkey. 

 Upper part of the body of a fine red ; head, extremities, and tail 

 of a deep lively red ; face naked and black. Body upwards of 

 two feet long ; tail nearly as long as the body. Inhabits French 

 Guiana, &tc.Audeb. v. fig. 1. 



M. ur sinus, Desm. The Araguato, Humb. Fur of a uniform 

 golden red; face in part covered with hairs. Form and size of the 

 preceding. Inhabits South America. Humb. Obs. ZooL fig. 30. 



M. stramineus, Desm. The Arabata. Fur of a straw yellow, the 

 hairs being of this colour at their point, and brown at their base. 

 A little less than the preceding Inhabits South America. 



M. fuscus, Desm. (Simia behebuth, Lin.) The Guariba. Fur 

 chesnut brown back and head, inclining to chesnut ; the extremi- 

 ties of the hairs golden colour. A little larger than the seniculus. 

 A solitary and savage species, inhabiting the most retired deserts. 

 Brazil. Bttjf. Suppl vii. t. 26. 



M. flavicaudaius, Desm. The Choro. Fur blackish brown, of a 

 darker tint on the back ; tail ornamented on both sides with two 

 yellow stripes. 

 A little smaller than the M. seniculus. Lives in troops, and is hunted for its skin, 



which is employed to cover the saddles of the mules on which they travel on the 



Cordilleras. Inhabits the province of Jaen in New Grenada, and the banks of thg 



river Amazons. 



