CLASSIFICATION 3 



term is so broad in its application as to include many 

 forms which are not to be considered in this work, and 

 many of them should be known under other names. Some 

 of these resemble man more than they resemble each 

 other. By the word monkey, we mean to refer only to 

 those of the simian tribe that have long tails and short 

 faces, while the word baboon refers only to the dog-like 

 forms having tails of medium length and long projecting 

 faces. The term ape will be applied only to those hav- 

 ing no tails at all. While all of these animals are called 

 simians, they are not all monkeys. 



The simian family is divided into two great classes, 

 known as old world monkeys and new zvorld monkeys. 

 The chief point of distinction is in the structure of the 

 nose. All of the monkeys belonging to the old world 

 stock have long, straight noses with vertical nostrils, sepa- 

 rated by a narrow thin wall, or septum, and from this fact 

 they are technically known as catarrJiini. The new world 

 stock have short, flat noses with oblique nostrils set wide 

 apart, and on this account they are known as platdrrJiini. 

 There are many other marks that distinguish genera and 

 species, but these are the two grand divisions of the simian 

 race. We shall not here attempt to classify the many 

 genera and species of either of these divisions. But we 

 shall point out some of the most salient anatomical features 

 of men and apes, and then those of monkeys. 



Among the simians, erroneously called monkeys, are the 

 four kinds that constitute the anthropoid, or manlike, 

 group of apes. In certain respects they differ from each 

 other as much as any one of them differs from man. The 



