THE FAMILIES AND GENERA OF BATS. 
149 
groove extending without break from last molar to last premolar, in- 
clusive. • Protocone low and long, occupying the entire inner border 
of crown. Para cone and metacone low but distinct, their commissure 
deeply concave. A faintly defined cingulum extends along outer edge 
of tooth. Second molar smaller than first; third with about one- 
third the crown area of second, its protocone and median groove dis- 
tinct, its outer cusps barely indicated, though present. First and sec- 
ond lower molars with median groove well developed, but less distinct 
and continuous from one tooth to the next than in upper molars; 
m 1 with paraconid low and hypoconid practically absent, but with 
protoconid, metaconid, and entoconid well developed; m 2 with dis- 
tinct metaconid and protoconid exactly opposite each other at anterior 
corners of crown, and low entoconid at posterior inner corner, but 
hypoconid barely, if at all, indicated. Third lower molar with about 
one-third the crown area of second; it has two rather distinct cusps 
in position of protoconid and metaconid. Skull showing no special 
peculiarities, the braincase moderately high and with fairly devel- 
oped sagittal crest, the rostrum somewhat more than half as long as 
braincase, its greatest interorbital width slightly more than depth in 
same region, and about equal to distance from incipient postorbital 
process to canine. Nares slightly extended backward by a squarish 
emargination more than half as wide as nasal aperture. Audital 
bullse small, covering less than half surface of cochlese. Noseleaf 
and ears normal. Tail absent. Inter femoral membrane moderately 
developed. Calcar present, though small. In males there is a con- 
spicuous tuft of stiff, modified hairs at front of shoulder similar to 
the epaulettes of Epomophorus. 
* Species examined. — Sturnira lilium (Geoffroy). 
Subfamily STENODERMINJE. 
1838. Phyllostomina (part) Gray, Mag. Zool. and Bot., II, p. 486, Decem- 
ber, 1838. 
1855. Stenodermina (part) Gervais, Exped. du Comte de Castelnau, Zool. 
Mamm., p. 32. 
1865. Stenodermata (part) Peters, Monatsber. k. preuss. Akad. Wis- 
sensch., Berlin, p. 257. 
1866. Stenodermina (part) Gray, Proc. Zool. Soc. London, p. 116. 
1866. Centurionina Gray, Proc. Zool. Soc. London, p. 118. 
1875. Stenodermata (part) Dobson, Ann. and Mag. Nat. Hist., 4th ser., XVI, 
p. 350, November, 1875. 
1878. Stenodermata (part) Dobson, Catal. Chiropt. Brit. Mus., p. 511. 
1891. Phyllostomatince (part; Stenodermatine division, part) Flower and 
Lydekker, Mammals living and extinct, p. 672. 
1892. Stenodermata (part) Winge, Jordfundne og nulevende Flagermus 
(Chiroptera) fra Lagoa Santa, Minas Geraes, Brasilien, p. 24. 
1898. Brachyphyllina (part) H. Allen, Trans. Amer. Philos. Soc., n. s., 
XIX, p. 258. 
1901. Centurionince Rehn, Proc. Acad. Nat. Sci. Philadelphia, p. 296, June 
8, 1901. 
