THE FAMILIES AND GENERA OF BATS. 119 
1901. Mormopince Rehn, Proc. Acad. Nat. Sci. Philadelphia, p. 297, June 8, 
1901. 
1901. Chilonycterince Miller and Rehn, Proc. Boston Soc. Nat. Hist., XXX, 
p. 275, December 27, 1901. 
Geographic distribution. — Tropical America, north to Cuba and 
and the southern border of the United States. 
Characters. — Teeth normal; humerus without secondary articula- 
tion with scapula, the tubercles short, rising scarcely above level of 
head, epitrochlea small, hardly more than base to large spinous 
process; muzzle without nose leaf; lower lip with plate-like out- 
growths. 
Principal subdivisions. — The members of the subfamily Chilonyc- 
terinse are divisible into three genera. 
KEY TO THE GENERA OF CHILONYCTERINiE. 
Braincase broader than long ; the basioccipital region conspicuously ele- 
vated Mormoops, p. 121. 
Braincase longer than broad ; the basioccipital region not conspicuously 
elevated. 
Wing membranes attached to sides of body ; back evidently furred 
Chilonycteris, p. 119. 
Wing membranes attached to middle of back ; back apparently 
naked Pteronotus, p. 120. 
Genus CHILONYCTERIS Gray. 
1839. Chilonycteris Gray, Ann. Nat. Hist., IV, p. 4 ( macleayii ). 
1840. Lohostoma Gtjndlach, Wiegmann’s Arcbiv. fur Naturgesehicbte, VI, 
Pt. 1, p. 357 (part). 
1843. Phyllodia Gray, Proc. Zool. Soc. London, p. 50 (parnellii ) . 
1878. Chilonycteris Dobson, Catal. Chiropt. Brit. Mus., p. 447. 
1904. Chilonycteris Rehn, Proc. Acad. Nat. Sci. Philadelphia, p. 181, Feb- 
ruary, 1904, issued March 29, 1904. 
• Type-species. — Chilonycteris macleayii Gray. 
Geographic distribution. — Warmer parts of America, north to Cuba 
and central Mexico. 
Number of forms. — According to the most recent writer on the 
genus, Mr. Rehn, there are eleven forms of the restricted genus Chi- 
lonycteris. 
Characters. — Dental formula: 
-2 3 . 1 . - - 3 4 5 6 7 . 2-2 1-1 2-2 3 - 3 _ 0 , 
1 2 -. 1 . - 234567 ^ 2 - 2 ’ C 1 - V /)J " 3 - 3 ’ m 3 - 3 ~ 34, 
Upper incisors unequal, the inner at least twice as large as outer, 
its crown subquadrate or rhombic in section, the anterior face 
broader than high; cutting edge nearly straight or with distinct 
median notch. Outer incisor scarcely extending beyond alveolus 
of inner. The four teeth form a continuous row between canines, 
