53O BATS WITHOUT A NOSE LEAF CHAP. 



f 



the interfemoral membrane. The dentition is I C ^- Pm ^ M f , 

 with another upper incisor in the young. It is African, Asiatic, 

 and Australian. 



This genus appears to be connected with Vesperugo by Mr. 

 1 )obson's proposed genus, or sub-genus as it is generally held to be, 

 Scotozous. 1 The genus Nycticejus, founded for the inclusion of 

 Scotozous dormeri, an Indian species, should, according to Dr. 

 Blanford, replace on grounds of priority the name Scotophilus. 

 But as this name (Nycticejus} is one introduced by Eafinesque, 

 whose work was so uncertain and untrustworthy, it seems prefer- 

 able to retain the better-known name of Scotophilus, introduced 

 by William Elford Leach. 



The genus Chalinolobus 2 has short, broad ears with an 

 expanded tragus. A distinct fleshy lobule projects from the 

 lower lip on either side of the mouth. The tail is as long as the 

 head and the body. The dental formula is 1 1 C ^ Pm -| or -J M |. 

 The genus occurs in Africa, Australia, and New Zealand ; but the 

 African species, with diminished premolars and pale coloration, 

 have been distinguished as Glauconycteris. 



Fam. 4. Emballonuridae. The Bats belonging to this family 

 have no nose leaf. The tragus is present, but often very small. 

 The ears in this family are often united. There are two phalanges 

 in the middle finger. The tail is partly free, either perforating 

 the interfemoral membrane and appearing upon its upper surface, 

 or prolonged beyond its end. The face is obliquely truncated in 

 front, the nostrils appearing beyond the lower lip. 



Eniballonura is Australian, Oriental, and Mascarene in range. 



O 



The ears arise separately, and there is a fairly developed and 

 narrow tragus. The tail perforates the interfemoral membrane. 

 The dental formula is I f C { Pm f M -|. 



Rhinopoma has the ears united ; the incisors are reduced by 

 one on each side of each jaw, and the premolars are similarly 

 reduced, but only in the upper jaw. 



Noctilio is an American genus of two or three species, which has 

 one pair of markedly large upper incisors, which completely con- 

 ceal the outer pair. On these grounds this Bat was removed from 

 its allies and placed by Linnaeus among the Rodents, an instance 

 of the disadvantage of the artificial scheme of classification. The 

 species named N. leporinus has been shown to feed upon fish. 



1 Dobson, Proc. Zool. Soc. 1875, p. 370. 2 IMd. p. 381. 



