THE FAMILIES AND GENERA OF BATS. 197 



Sternum short and broad, its length in middle line not twice as great 

 as breadth of presternum ; four or five ribs connected with sternum ; 



ear slightly but evidently funnel-formed Kekivqulin.e, p. 232. 



Sternum slender, its length in middle line more than twice as great 

 as breadth of presternum ; six or seven ribs connected with sternum ; 

 ear not funnel-formed. 



Presternum with median lobe larger than body of bone; scapula 

 with coracoid straight, directed inward; second phalanx of 

 third finger nearly three times as long as first. 



MlNIOPTERINvE, p. 227. 

 Presternum with median lobe much smaller than body of bone ; 

 scapula with coracoid curved outward ; second phalanx of third 

 finger not specially elongated. 



Nostrils opening forward beneath a conspicuous horseshoe- 

 shaped ridge or low noseleaf Nyctophilin.e, p. 234. 



Nostrils opening laterally or vertically, the muzzle occa- 

 sionally with warty elevations, but never with horseshoe- 

 shaped ridge or low noseleaf. 



Seventh cervical vertebra fused with first dorsal ; ear 

 with rudimentary keel, but with no anterior basal lobe. 



TOMOPEATIN/E, p. 237. 



Seventh cervical vertebra free from first dorsal ; ear 

 without keel, but with well-developed anterior basal 

 lobe Vespertilionin.e, p. 197. 



Siibfamily- VESPERTILIONIN^. 



1878. Vespertiliones Dobson, Catal. Chiropt. Brit. Mus., p. 168 (except 

 genera Kerivoula and Harpiocephalus) . 



1891. Vespertilionidir (part, Vespertilionine division, except genera Keri- 

 voula and Harpiocephalus) Flower and Lydekkee, Mammals, living 

 and extinct, p. 661. 



1897. Vespertilioninw and Plecotina; Miller, North American Fauna, No. 

 13, pp. 46 and 54, October 16, 1897. 



Geographic distribution. — Same as that of the family. 



Characters. — Sternum slender, its entire length considerably more 

 than twice greatest width of presternum ; median lobe much smaller 

 than body of presternum ; six ribs connected with sternum ; seventh 

 cervical vertebra not fused with first dorsal ; scapula with coracoid 

 curved outward; nostrils simple, sometimes tubularly elongated, but 

 never margined by special outgrowths; lower incisors in all known 

 genera 3-3. 



Remarks. — Of the subfamilies of Vespertilionida? this is distinctly 

 the most primitive, being perhaps best characterized by the absence 

 of the special modifications that distinguish the other groups. 



Principal subdivisions. — The species now known represent 33 

 genera. 



KEY TO THE GENERA OF VESPERTILIONINE. • 

 r> o 



Cheek teeth 3^75- 



Wing without glands MyotU, p. 200. 



Wing with large gland near elbow I'izonyx, p. 202. 



