62 MAMMALS OF THE PACIFIC WORLD 



half inches, of the tail about three-fourths of an inch, and of 

 the forearm one and three-fourths inches. 



Free-tailed Bats. Family Molossid^e 



The Free-tailed, Wrinkled-lipped or Mastiff Bats (Cheiro- 

 meles, Tadarida, and allies) are partly described by their com- 

 mon names. The upper lip which projects over the lower lip 

 is large and wrinkled while the muzzle is obliquely truncate, 

 all of which gives these bats the look of a mastiff. The tail 

 projects far beyond the interfemoral membrane, which can be 

 moved back and forth on the tail bones, somewhat like an awn- 

 ing, to increase or decrease its extent. The wing is narrow; 

 the entire fifth finger is little longer than the metacarpal of 

 the third. The lower leg is short, the hind foot stout, its toes 

 fringed with long hairs. The family occurs in the warmer parts 

 of both hemispheres. 



The Naked Bat (Cheiromeles) is one of the ugliest and 

 strangest-appearing mammals in existence. Its snout is long 

 and pig-like, and it has small, widely separated ears. The skin 

 of its neck falls in sparsely haired folds. The rest of the body 

 is covered with hair so short that it looks naked. A glandular 

 pouch is situated on the throat, and under each wing is a large 

 pocket which perhaps serves to carry the young. The hind 

 foot is hand-like, with the first toe large and opposable. This 

 bat is larger or at least heavier than other East Indian in- 

 sectivorous bats. The head and body reach five inches or more, 

 the tail about two inches, and the forearm two and three-fourths 

 to three and three-eighths inches. It is restricted to the Malayan 

 region: Sumatra, Java, Borneo, and Palawan. 



The Big-eared Mastiff Bat (Otomops) occurs in Java. It is 

 nearly as large as the naked bat, and is brown. The ears are 

 long, united over the forehead. Another species of this bat is 

 found in Africa. 



Other mastiff bats also, with the ears united across the head, 

 are found north to Formosa and east to Norfolk Island, which 



