Fig. 535b.—Head of Cebus vel- Fig. 535¢c.—Head of Semnopithe- 
derosus, cus cornutus.— After Darwin. 
Fig. 535a.—Galago. From Liitken’'s Zoology. Mig fe OrenEoulnes or Mias.—After 
jitken, 
[To face page 620.] 
