Ixviii INTRODUCTION 



Huxley has divided the globe into a northern and southern portion 

 called respectively Arctogsea and Notogaea. North of this line in the 

 Nearctic Region no species of the Primates dwells, while in the Eastern 

 Hemisphere only those species belonging to certain islands of the 

 Australian Region are found to the south and east of it. Beginning 

 with the Old World, so called, we find that both Suborders are repre- 

 sented, Lemuroidea being entirely absent from the Western Hemi- 

 sphere. The species of this Suborder are found in the Malagasy 

 Subregion of the East and West African Subregions, and the Indian 

 and Ceylonese Subregions of the Oriental Region. The Island of 

 Madagascar contains nearly one half of the number of the species 

 comprised in the following genera : Daubentonia, Cheirogale, Micro- 

 CEBus, Mixocebus, Altililemur, Lepidolemur, Myoxicebus, Lemur, 

 LiCHANOTus, Propithecus, and Indris, embracing altogether forty- 

 three species and subspecies out of the one hundred and six belonging 

 to the Suborder. The East African Subregion has one species of 

 Perodicticus, p. ibeanus in the Kakamega forest; and eighteen 

 species and subspecies of Galago and Hemigalago are found in the 

 East African Subregion, ranging from the vicinity of the White Nile 

 below Khartoum to Mashonaland on the south up to an elevation of 

 5,000 feet. These are G. dunni; G. sennaariensis : G. gallarum ; 

 G. HiNDsi ; G. KiKUYUENSis ; G. lasiotis; H. thomasi ; G. braccatus ; 

 G. braccatus albipes; G. panganiensis; G. badius; G. zanzibaricus; 

 G. crassicaudatus ; G. kirki ; G. mosambicus; G. nyass.e; G. sene- 

 GALENSis; and G. montieri. In the West African Subregion are G. 

 senegalensis ; G. pupulus; G. a. cameronensis; G. elegantulus; 

 G. a. batesi; G. anomurus; G. demidoffi; and G. demidofh poensis, 

 and six others. In the South African Subregion are G. nyass^ and G. 

 granti. The locality of G. e. apicalis is unknown. 



In the Indian Subregion of the Oriental Region one species of 

 LoRis, L. lydekkerianus ; and one of Nycticebus, N. coucang are 

 found, while the Ceylonese subregion has Loris tardigradus. The 

 Indo-Chinese Subregion has four species of Nycticebus : N. pyg- 

 M^us; N. tenasserimensis; N. malaianus; and N. cinereus; and 

 the Indo-Malay Subregion contains seven species of the same genus, 

 viz.: the one last named together with N. hilleri ; N. bancanus ; N. 

 javanicus; N. borneanus; N. natun-e; and N. menagensis. 



The members of the Suborder ANTHROPOIDEA are widely 

 distributed over the Old World and are found in all its Zoogeographical 

 divisions excepting the Polynesian and New Zealand subregions. The 

 Ethiopian region is the richest in its number of Primates of all the 



