34 
MAMMALIA. 
eyes are large, and deep sunk,—the ears are round and naked,— 
the fur is black, and the arms very long, nearly reaching the 
ground when the animal is standing. It has no tail. 
Inhabits Sumatra, Moluccas, and the coast of Coromandel. 
This is the genus Hylobates of Illiger, differing only from the 
preceding in the great length of the arms, which we do not think 
sufficient for a generic distinction. The Genus Presbytis of 
Cuvier is liable to the same objection. 
Genus 3_Colobus. — Geoffroy. 
Generic Character —The incisory teeth are canine teeth JiJ, 
grinders ijHj. Facial angle from 40 to 45 degrees,—muzzle 
short, face naked,—nostrils inclining towards each other, with 
distinct cheek pouches,—no thumbs on the hands,—feet with 
five fingers, the thumb much separated from the others, in¬ 
creasing in length from the first to the third,—tail long and 
slender, with a tuft at its extremity,—with callosities c„i the 
hinder parts,—body and legs generally slender. 
Colobus polycomos. — Full Bottom Monkey. 
Plate IV. fig. 2. 
With a short, black, and naked face; the head small, which, 
with the shoulders, are covered with long coarse flowing hairs, 
like a full-bottomed periwig, of a dirty yellowish colour, mixed 
with black,—body, arms, and limbs, of a glossy black,—the 
hands are naked, with four fingers only,—on each of the lower 
limbs are five long fingers,—the tail is long, of a snowy white¬ 
ness, with an oblong tuft at its point. About three feet in 
height. 
Inhabits Sierra Leone. 
Genus 4.— Semnopithecus. — F. Cuvier. 
Generic Character .—Incisors canines grinders ®—|, to¬ 
tal 32. The last grinders in the lower jaw have five projec¬ 
tions on their crowns, the fifth occupying the middle line of the 
tooth. Facial angle 45 degrees; the head round; the nose 
