CONTENTS. 



PAGf 



The Leonine Tamarin. 



Midas leonina. Plate XXIX. . . 241 



SYNOPSIS. .... 245 



ORDER I. QUADRUMANA . . .245 



Synopsis of the Simiadse. Two Sub-families 245 



I. SUB-FAMILY CATARRHINI. 



Orangs. 



Genus I. Troglodites ... 246 



Genus II. Pithecus . . .246 



Genus III. Hylobates. Seven Varieties . 247 



Guenons. 



Genus IV. Presbytis . . .248 



Genus V. Colubus. Three Varieties . 248 



Genus VI. Nasalis. Two Varieties . 249 



Genus VII. Lasiopyga . . 249 



Genus VIII. Semnopithecus. Six Varieties . 250 



Genus IX. Cercopithecus. Twelve Varieties 251 



Genus XII. Cercocebus. Six Varieties . 253 



Genus XIII. Macacus. Seven Varieties . . 254 



Genus XIV. Inuus ^ . .256 



Baboons. 



Genus XV. Cynoccphalus. Four Varieties . 256 



Genus XVI. Papio. Two Varieties . . 257 



JJ, SUB-FAMILY PLATYRRHINI. 

 Howlers. 



Genus XVII. Alycetes. Seven Varieties , 258 

 Sapajous. 



Genus XVIII. Ateks. Seven Varieties , 260 



