MAMMALIA. 449 



40 degrees ; superciliary and occipital ridges very distinct ; tail 

 very short, or only a small tubercle in its stead j cheek pouches 

 and callosities distinct; ears angular; general aspect of the face 

 like that of a dog. 



Sub-Genus 1. — Macacus, Proper. — The tail more or less 

 long. 



Macacus nemislrinus. — The Brown Baboon. —Plate V*. 

 fig. 6. — The muzzle large and thick ; face and ears naked, and 

 of a flesh colour ; hair on the head and back deep olive ; paler 

 on the belly : the eyes hazel ; it has cheek pouches, and red cal- 

 losities on the hinder parts. Inhabits Sumatra and Japan. 



Sub-Genus 2 Magot.— A simple tubercle is substituted 



for the tail. 



Macaous inicus — The Barbary Ape. — Plate VI. hg. 3. — 

 Described, vol. 11. p. -121. 



Genus 7. — Cynocephalus. — Cuvier. 



Generic Character. — "With thirty-two teeth, as in the rest of 

 the tribe ; the canine teeth very large ; head elongated ; nmzzle 

 much produced, like that of a dog ; facial angle from 30 to 35 

 degrees ; face considerably wrinkled, and striated longitudinally; 

 the superciliary, sagittal, and occipital ridges, strikingly develop- 

 ed. They have cheek pouches. 



Sub-Genus 1. — Baboons Tail as long as the body, and 



sometimes longer. 



Cynocephalus papio. — The Baboon. — Plate VI. fig. 4. — 

 Described, vol. II. p. 422. 



Cynocephalus hamadryas. — The Dog -Faced Baboon. — 

 Plate VI. fig. 5. — See description, vol. II. p. 426. 



Sub-Genus 2 Mandrills. — Tail very short, slender, and 



perpendicular to the dorsal spine. 



Cynocephalus mormon. — The Ribbed Nose Baboon.— Plate 

 V**. fig. I. — See description, vol. II. p. 425. 



Tribe II. — American Apes. 



(Simise Platyrrhiui, Geoffroy.j 

 Head round ; on each side of both jaws are six blunt tuber- 



