THE FAMILIES AND GENERA OF BATS. l2l 
Species examined. — Pteronotus davyi Gray and P. fulvus 
(Thomas) . 
Remarks. — This genus is immediately recognizable among Amer- 
ican bats by the apparently bare back, the fur of the upper surface 
of the body being concealed by the wings. 
Genus MORMOOPS Leach. 
1821. Aello Leach, Trans. Linn. Soc. London, XIII, Pt. 1, p. 69 ( cuvieri ). 
1821. Mormoops Leach, Trans. Linn. Soc. London, XIII, Pt. 1, p. 76 
(blainvillii ) . 
1829. Mormops Cuvier, Diet. Sci. Nat., LIX, p. 422. 
1878. Mormops Dobson, Catal. Cliiropt. Brit. Mus., p. 454, 
1901. Mormoops Mtller and Rehn, Proc. Boston Soc. Nat. Hist., XXX, p. 
277, December 27, 1901. 
1902. Mormoops Rehn, Proc. Acad. Nat. Sci. Philadelphia, p. 160, March, 
1902, issued June 11, 1902. 
Type-species. — Mormoops blainvillii Leach. 
Geographic distribution. — Warmer parts of America, north to 
Cuba and the southern border of the United States (Texps). 
Number of forms. — Six forms of Mormoops are now recognized. 
Characters.- — In general like Chilonycteris , but skull so greatly 
shortened that both rostrum and braincase are broader than long; 
braincase greatly deepened, its floor so elevated that lower rim of 
foramen magnum is above level of rostrum; teeth essentially as in 
Chilonycteris , except that lower incisors are of about equal size .and 
uniform structure, the inner tooth lacking all trace of backward 
extension of the crown; dermal outgrowths on chin very highly 
developed. 
Species examined. — All the known forms. 
Subfamily PHYLLOSTOMIXJS. 
1838. Phyllostomina (part) Gray, Mag. Zool. and Bot., II, p. 486, De- 
cember, 1838. 
1840. Phyllostomata (part) Wagner, Schreber’s Saugthiere, Supplements, 
I, p. 384. 
1842. Pliyllostominece (part) Lesson, Nouveau Tableau du Regne Animal, 
Mammi feres, p. 30. 
1855. Glossophagina (part) Gervais, Exped. du Comte de Castelnau, Zool., 
Mamm., p. 40. 
1855. Vampyrina (part) Gervais, Exped. du Comte de Castelnau, Zool., 
Mamm., p. 44. 
1865. Vampyri (part) Peters, Monatsber. k. preuss. Akad. Wissensch., 
Berlin, p. 256. 
1866. Lonchoronina Gray, Proc. Zool. Soc. London, p. 113. 
1866. Macrophyllina Gray, Proc. Zool. Soc. London, p. 113. 
1866. Vampyrina Gray, Proc. Zool. Soc. London, p. 113. 
1866. Phyllostomina Gray. Proc. Zool. Soc. London, p. 114. 
