68 MAMMALIA. CHEIROPTERA. 



M. castaneus, Geoff. Desm, Fur chestnut above, whitish below ; a 

 band extended from the muzzle to the forehead. Body nearly five 

 inches long; spread of the wings 13 inches. Paraguay. 



M. laticaudatus, Geoff. Desm. Fur obscure brown above, less deep 

 below ; tail bordered on each side by a prolongation of the inter- 

 femoral membrane. Body about four inches long. Paraguay. 



M. crassicaudatus, Geoff. Desm. Fur brown cinnamon- colour, 

 brighter below than above ; tail bordered on each side by a pro- 

 longation of the interfemoral membrane. Three inches and a 

 half long ; spread of the wings about ten inches Paraguay. 



M. amplexicaudatus, Geoff. Desm. Fur blackish, fainter below 

 than above ; tail entirely enveloped in the interfemoral mem- 

 brane. Size of the common bat. Cayenne Buff. Supp. vii. pi. 75. 



M. acuiicaudatusy Desm. Tail long, almost entirely enveloped in 

 the interfemoral membrane ; fur brown black. Body about an 

 inch and a half long ; wings very long. Brazil. 



M. ursinus, Spix. Body black ; jaws robust ; ears falling over 

 the forehead. Inhabits Brazil. Spix, Braz. t. 35, fig. 4. 



M. nasntus, Spix. Nose elongated ; ears falling over the fore- 

 head ; body above brown black, below brown ; tail half enveloped 

 in the membrane. Inhabits Brazil. Spix, Braz. t. 35, fig. 7- 



M. fumarius, Spix. Body blackish brown ; face, ears, and wings 

 very black. Inhabits Brazil. Spix, Braz. t. 35. fig. 5, 6. 



Gen. 28. NYCTINOMUS, Geoff. 



Incisors f, canines J-J-, molars f-f, = 28. Upper incisors co- 

 nical and contiguous ; inferior very small ; molars with point- 

 ed tubercles ; nose flat, on a level with the lips, which are 

 deeply cleft and wrinkled ; ears large, united, and lying on 

 the face ; auricle exterior ; tail long, enveloped by the mem- 

 brane at its base ; wings large ; thumb very short ; index 

 finger without phalanges ; hind feet covered with very long 

 hair. 



N. Mgyptiacus, Geoff. Desm. Fur red above, brown below ; tail 

 slender ; no muscular bands in the interfemoral membrane, which 

 envelopes the half of the tail. Body about three inches long. 

 Inhabits Egypt Geoff. Egypt, pi. 2, No. 2. 



N. Bengalensis, Geoff. Desm. Tail pretty thick ; muscular bands 

 in the interfemoral membrane. Size of the preceding. Two in- 

 cisors in each jaw according to Buchanan. Lin. Trans, v. t. 13. 



N. acetabulosus, Geoff. Desm. Fur of a brown black ; interfemoral 

 membrane enveloping two-thirds of the tail. About ten inches 

 long. Island of Mascareigne. 



N. dilalns, Horsfield. Blackish brown, paler underneath ; wings 

 dilated ; tail slender, half enveloped in the interfemoral mem- 

 brane, which is furnished with a few muscular bands. Java, 



