MORPHOLOGY OF THE CEREBRAL CONVOLUTIONS. 



275 



FISSURES AND CONVOLUTIONS OF THE PRIMATES. 



The order Primates includes the various races of mankind, the apes, monkeys 

 and lemurs. It may be sub-divided into the following groups : 



1. LEMURID.2E ] 



( 2. 



r i. 



2. SIMIAD^] | 2. 



1. Cheiromyini ( Cheiromys or Aye-Aye.) 



I ' 



I 3. Cattarhini 



3. ANTHEOPIDJ! 



Lemurini {Lemurs or half apes). 

 Arctopithecini (Marmosets of South America.) 

 Platyrrhini(New World) Ateles, Cebus, Chysothryx, etc. 



1. Cynomorpha, Old World monkeys Semnopithecus, 

 Macacus, Cynocephalus. f 1. Hylobates. 



2. Anthropomorpha. | gggg*, 



[ niger and Gorilla. 

 Negroes, Bushmen of ultra-Saharal Africa, Negritos of 

 Malay Peninsula and Archipelago, and of Papuan 

 Islands. 



1. Australioid. 



2. Mongoloid. 



3. Zanthochroic. 



4. Melanochroic. 



1. Ulotriehi 



2. Leiotriehi 



1. Australioid. — Australia and in the Dekhan. 



2. Mongoloid. — Mongol, Tibetan, Chinese, Polynesian, Esquimaux and American races. 



3. Zanthochroic. — Slavonians, Teutons, Scandinavians and fair Celtic-speaking races. 



4. Melanochroic. — Iberians, Black Celts and dark complexioned white races. 



By many, and recent evidence confirms this view, the Lemurs or Lemuroid 

 animals are placed in a distinct sub-order of the Primates ; or even by some as 

 forming an order apart, without any very near affinities with the animals with 

 which they have hitherto been so closel}- associated. Anaptomorphus homunculus 

 from the Lower Eocene of Wyoming, an animal smaller than Tarsius spectrum, is 

 considered by Cope to be " the most simian lemur yet discovered, and probably 

 represents the family from which the true monkeys and men were derived." The 

 Lemuroidea have been divided as follows : — 



Family I. LEMURIDiE 



Sub-Families 



I. Indrisinae 



2. Lemurinse 



3. Galaginse 



4. Lorisinae 



Genera. 



Indris 



Propithecus 



Avahis 



Lemur 



Hapalemue 

 Lepilemur 



f Cheirogaleus 

 \ Gal ago 



LORIS 



Nycttcebus 

 Perodicticus 



Genera. 



Family 2. TARSIID.&3 Tarsius 



Family 3. CHIROMYID^E Chiromys 



