14 MANUAL OF NATURAL HISTORY. 



or cheek pouches ; tail often prehensile. Den- 

 tition incis: * — can: *£* — mol: £^==36. 

 The Iacchi have only five grinders on either 

 side of each jaw. 



3. Family. — Lemurs (Lemuridae). Muzzle pointed; 



fur woolly; grinders tubercular; tail some- 

 times long, sometimes absent ; first, or second 

 and third toes of hind foot furnished with 

 claws. Some have large nocturnal eyes. In- 

 cisors varying in number in upper and lower 

 jaws. 



4. Family. — Flying-Lemurs (Galeopithecidse). 



Hairy skin, expanded from sides of body, 

 extending between fore and hind legs, and 

 including the tail ; toes furnished with sharp 

 compressed claws; cutting teeth pectinated. 

 Habits nocturnal. 



III. ORDER.— Bats (Cheiroptera). 



Fingers of fore limbs very long, connected by a 

 membrane, which is continued to unite the anterior 

 and posterior extremities, forming wings, by which 

 the animals are enabled to fly. 



1. Family. — Insectiverous Bats (Vespertilionidse). 



Grinders acutely tubercular ; index, or first 

 finger, with one or two phalanges, without 

 a nail; many have a nasal disk expanded 

 in the form of a leaf. Those which are pecu- 

 liar to the new world have three phalanges 

 to middle finger ; the others have but two. 



2. Family. — Frugiverous-Bats (Harpyidse). Grind- 



