96 BULLETIN 57, UNITED STATES NATIONAL MUSEUM. 



1872. Noctilionidw (part ; Noctilioninw) Gill, Arrangement of the Families 



of Mammals, p. 17. , 



1875. Emballonuridw (part; Emballonurinw, part, Noctiliones) Dobson, 



Ann. and Mag. Nat. Hist., XVI, p. 349. November, 1875. 

 1878. Emballonuridw (part; Emballonurinw, part, Noctiliones) Dobson, 



Catal. Cbiropt. Brit. Mus., p. 353. 

 1886. Noctilionidw Gill, Standard Natural History, V, p. 171. 

 1889. Bruchyuridw Ameghino, Actas de la Acad. Nac. de Ciencas de la Rep. 



Argentina en C6rdoba, VI, p. 350. 



1891. Emballonuridw (part; Emballonurinw, part, Noctilionine division) 

 Flower and Lydekker, Mammals Living and Extinct, p. 666. 



1892. Phyllostomatida- (part ; Mormopini, part) Winge, Jordfundne og 

 nulevende Flagermns (Cbiroptera) fra Lagoa Santa, Minas Geraes, ■ 

 Brasilien, p. 2i. 



Geographic distribution. — Tropical America, north to Cuba and 

 southern Mexico. 



Characters.^- Humerus with trochiter much smaller than trochin, 

 its articulation with scapula slight and indefinite, by an ill-defined 

 surface less than one-third as large as glenoid fossa, the two tubercles 

 rising barely to level of head, epitrochlea well developed, with dis- 

 tinct spinous process, capitellum slightly out of line with shaft; 

 second manal digit with metacarpal as long as that of third, its 

 single phalanx very short and rudimentary; third finger with two 

 phalanges, the terminal of which, as well as that of fourth digit, lies 

 folded beneath first when wing is at rest; shoulder girdle normal, 

 the keel on the mesosternum (Plate XIII, fig. 2), slightly developed, 

 seventh cervical vertebra not fused with. first dorsal; foot normal, 

 but with enormously developed bony calcar, supported by greatly 

 enlarged, distally expanded, and flattened calcaneum (Plate XIII, 

 fig. 1) ; fibula thread-like, extending to head of tibia, but cartilagi- 

 nous at its upper extremity; pelvis (Plate XIII, figs. 3-6), abnormal, 

 the ischia fused together and with under side of laterally-compressed, 

 urostyle-like sacrum, a symphysis pubis also present in males; skull 

 without distinct postorbital processes; premaxillaries represented by 

 both nasal and palatal branches, fused in adult with each other and 

 with maxillaries, the nasal branches unusually long and well devel- 

 oped, the palatal branches short and scarcely visible from below, 

 though easily distinguishable in young skulls on floor of nares; pal- 

 ate completely closed anteriorly ; teeth normal ; ears separate ; muzzle 

 without leaf -like outgrowths ; orifice of mouth transverse, not extend- 

 ing behind canines, the very full lips forming distinct cheek pouches. 



History. — The history of the family Noctilionidse is sufficiently 

 indicated by the synonymy on page 95. From this it will be seen that 

 the group was originally associated with the Vespertilionidse, but 

 that, by most recent authors, it has been placed in the Emballonuridce. 

 In 1886 Gill recognized it as' a distinct family. Winge in 1892 united 



