176 GEOGRAPHICAL ZOOLOGY. [PART iv. 



Cebidae. The thumb is not at all opposable, and all the fingers 

 are armed with sharp claws. The hallux, or thumb-like great 

 toe, is very small ; the tail is long and not prehensile. The two 

 genera Hapale (9 sp.), and Midas (24 sp.), are of doubtful value, 

 though some naturalists have still further sub-divided them. 

 They are confined to the tropical forests of South America, and 

 are most abundant in the districts near the equator. 



Sub-order LEMUROIDEA. 

 FAMILY 6. LEMUKIDA (11 Genera, 53 Species.) 



GENERAL DISTRIBUTION. 



NEOTROPICAL | NEAKCTIC I PAL^EARCTIC | ETHIOPIAN I ORIENTAL AUSTRALIAN 

 SUB-REGIONS. SUB-REGIONS. SUB-HEGIOXS. SUB-REGIOVS. SUB-REGIONS. SUB-KEGIONS. 



The Lemuridse, comprehending all the animals usually termed 

 Lemurs and many of their allies, are divided by Professor Mivart 

 who has carefully studied the group into four sub-families 

 and eleven genera, as follows : 



Sub-family Indrisinse, consisting of the genus Indris (5 sp.), 

 is confined to Madagascar. 



Sub-family Lemurinae, contains five genera, viz. : Lemur, 

 (15 sp.) ; Hapalemur (2 sp.) ; Microcebus (4 sp.) ; Chirogaleus 

 (5 sp.) ; and Lepilemur (2 sp.) ; all confined to Madagascar. 



Sub-family Nycticebinae, contains four genera, viz. : Nycticebus 

 (3 sp.) small, short-tailed, nocturnal animals, called slow-lemurs, 

 range from East Bengal to South China, and to Borneo and 

 Java; Loris (1 sp.) a very small, tail-less, nocturnal lemur, 

 which inhabits Madras, Malabar, and Ceylon ; Perodicticus (1 sp.) 

 the potto a small lemur with almost rudimentary fore- 

 finger, found at Sierra Leone (Plate V., vol. i., p. 264); Arctocebus 

 (1 S p.) the angwantibo, another extraordinary form in which 

 the forefinger is quite absent and the first toe armed with a long 

 claw, inhabits Old Calabar. 



