Order CHIROPTERA. 

 Suboider I. MEGACHIROPTERA. 



Differential characters, as compared with tlie suborder Micro- 

 oliiroptera. — Second digit: retaining an evident degree of inde- 

 pendence from third, its ungual phalanx present, though the claw 

 is sometimes wanting. Deltoid crest of humerus low ; tuhercidani 

 mnjits and t. minus small, the former never articulating with the 

 scapula. Facial portion of skull vnriable in length, hut never 

 specialized in form ; cochlea small, basioccipital and basisplieuoid 

 not narrower than usual ; glenoid fossa of sqiramosal unmodified ; 

 angular process of mandible broad and low, or practically absent. 

 External ear not specialized, tragus never present, margin of ear 

 forming a complete ring. 



Range. — Tropical and subtropical portions of Old "World, includ- 

 ing the whole of the Malagasy region, and extending to Australia 

 and Polynesia, as far east as the Carolines and Samoa, but not to 

 Xew Zealand. 



Fnniily PTEROPODID.i:. 



Sul)faiMily I. PTEROPODIN.E. 



Differi'ittiiil cliaractfrs. Tongue not highly extensible. liioi.-o;j 

 tioriual. 



Ramie. — The same as tliat of the Megachiroptcru [lupra). 



