NYCTINOMOPS. 627 
Geogr. Distr. Guatemala, through Central America to Brazil, 
South America. 
Genl. Char. Ears united by a low band, antitragus as high as 
long; ears joined together only by the bases of their inner margins; 
tragus very small; lower incisors 2—2: no gular sac. 
Color. Dark brown above and beneath extending on to wing 
membranes along side of body. 
Measurements. Total length, 78.7; tail, 26.6; tail free from 
membrane, 17.7; forearm, 45.7; thumb, 7.6; third finger, metacarpal, 
43; fourth finger, metacarpal, 41.9; fifth finger, metacarpal, 25.4; 
tibia, 12.7; foot, 8.8; tragus, 2.5. 
588. depressus (Nyctinomus), Ward, Am. Nat., xxv, 1891, p. 747, 
fig. 
macrotis nevadensis (Nyctinomus), H. Allen, Mon. N. Am. Bats, 
1894, p. 171. 
TuCUBAYA FREE-TAILED Bat. 
Type locality. Tucubaya, Federal District, Mexico. 
Geogr. Distr. Known only from the type locality. 
Genl. Char. Ears large, outer margin bilobate; tragus straight; 
conch with seven diagonally transverse flutings; nostrils opening 
forward; five flutings on face extending to lip; furrow beneath eye; 
wing membrane from tibia and calcanea; outer edges of first and fifth 
toes fringed with short hairs; gular pouch absent. Upper incisors 
semi-conical, lower bifid; canines long; first premolars, above and 
below, smaller than second, and these larger than molars; cusps 
acute. 
Color. Above burnt umber; beneath Prout’s brown; base of hairs 
white. 
Measurements. Total length, 79; tail vetebre, 52; beyond inter- 
femoral membrane, 33; forearm, 60; thumb, 8; second finger, meta- 
carpal, 55; third finger, metacarpal, 58; fourth finger, metacarpal, 
56; fifth finger, metacarpal, 29; tibia, 18; foot, 13; ear, 25; tragus, 4.5. 
589. macrotis (Nyctinomus), Gray, Ann. Nat. Hist., tv, 1839, p. 5. 
auritus Natt., Wagn., Wiegm. Archiv. f. Naturg., 1843, p. 368. 
laticaudatus et cecus, Rengg., Saugeth. Parag., 1830, p. 88. 
aurispinosis Peale, U. S. Expl. Exp., viii, 1844, p. 21. 
CuBAN FREE-TAILED Bat. 
Type locality. Cuba. 
Geogr. Distr. Islands of Cuba and Jamaica, West Indies to Brazil 
and Paraguay. 
Genl. Char. Ears thin; keel of ear conch slender, deep, bent 
