MOLOSSUS. 619 
Dysopes Illig., Prodr. Syst. Mamm. et Av., 1811, p. 122. 
Ears close together, or united at base of their inner margins; 
muzzle broad, obtuse or obliquely truncate; indistinct vertical wrin- 
kles on lips, sometimes smooth; tragus short; first and fifth toes 
thickest, backs of all with long curved hairs. Upper incisors with 
their cusps close together in front. 
IANO AKO) MBS Sie a CIN asp 
A. Forearm over 50 mm. PAGE 
eee DO Te TEGCISIh TOW)... cc sais on oar Saale ae oe VU. rufus 619 
eae NOME Sealu DLO Wil! = 6c. Sis Siipde ns oo A Ole eed VW. nigricans 620 
Eeeborearm Over 26,mm.; under 50 mm... 2... .5 2 VM. obscurus 620 
me horearm not Over 36 MM) ..s. 6 teal VW. tropidorhynchus 620 
Fic. XCIX. MOLOSSUS RUFUS. 
No. 102789 U. S. Nat. Mus. Coll. Nearly lite size. 
577. rufus (Molossus), Geoff., Ann. Mus. Hist. Nat. Paris, v1, 1805, 
P25 5- 
ursinUs, Spix, Simia. et Vespert. Bras., 1823, p. 58, pl. xxv, fig. 4. 
alecto, Temm., Mon. Mamm., 1, 1827, p. 231. 
holosericeus, Natt., Weigm., Archiv. f. Naturg., 1843, p. 368. 
albus, Natt., Weigm., Archiv. f. Naturg., 1843, p. 368. 
Rurous MastirF Bart. 
Type locality. Paraguay. 
Geogr. Distr. Southern Mexico, through Central America to 
Paraguay and Bolivia, West Indies. 
Genl. Char. Glandular sac directed forward, opposite the an- 
terior extremity of the sternum in the male; ears shorter than head; 
antitragus circular; tragus small, acute; muzzle extending beyond the 
jaw; short erect hairs between nostrils; lips smooth; wing membrane 
from ankles. 
Color. General hue of body above and beneath reddish brown. 
Measurements. Total length, 128.2; tail vertebre, 50.8; thumb, 
10; forearm, 51; third finger, metacarpal, 50.8; fourth finger, meta- 
carpal, 49.5; fifth finger, metacarpal, 26; tibia, 17.7; foot, 12.7; ear, 
