HYLONYCTERIS. MONOPHYLLUS, 675 
152. Hylonyeteris. 
a2, 9A Ioel, HD 32-3. WV 
ieee Cire; Poy 
ee 
—- ; 30. 
} 
we we 
Hylonycteris Thomas, Ann. Mag. Nat. Hist., 7th Ser., x1, 1903, 
p. 286. Type Hylonyeterts underwoodi Thomas. 
=xternal characters as in Chwronycterts; upper incisors very small, 
lower incisors absent; no diastema behind upper canines; skull with 
elongated bony palate, posterior nares level with middle of glenoid 
surfaces; basioccipital with a prominent median ridge continuous with 
a similar vomerine ridge, and deeply excavated on each side; no 
zygomatic arch, 
635. underwoodi (/ylonycteris), Thomas, Ann. Mag. Nat. Hist., 7th 
Ser., XI, 1903, p. 287. 
UNpERWOoop’'s Bat. 
Type locality. Rancho Redondo, Costa Rica. 
Geogr. Distr. Rancho Redondo and Tarbaca, Costa Rica, Central 
America. 
Genl. Char. Muzzle medium length; nose-leaf small, narrow, 
pointed without distinct midrib; ears with inner margin convex, tip 
rounded, outer margin slightly concave above, then convex, the 
pointed antitragal portion separated by a deep notch; wings from 
the ankles; wing and interfemoral membranes bare; tooth rows diver- 
ging posteriorly, 
Color. Seal brown above, crown nearly black; under parts paler. 
Measurements. ‘‘Nose-leaf, 5.3; ear, 11.5; thumb and claw, 10; 
index, 32; third finger, metacarpal, 33.5; first phalanx, 14; second 
phalanx, 18.5; fifth finger, metacarpal, 29; first phalanx, 7.3; second 
phalanx, 11; tibia, 12; foot and claws, 9.8; calcar, 6; tail, 6; inter- 
femoral at center, 13. Skull: greatest length, 13; basal length, 20.3; 
interorbital breadth, 4.2; breadth of braincase, 8.6; palatal length, 
14.2; front of canine to back of third upper molar, 8.5; same to back 
of third lower molar, 8.8; tip of muzzle to back of zygoma root, 9.8."’ 
(Thomas, |. c.) 
153. Monophyllus. 
LS Ca PS MS 34. 
\ 3 
Monophyllus Leach, Trans. Linn. Soc., x1, 1820, p. 75. Type 
Monophyllus redmani Leach. 
Nose-leaf, ears, and tragus as in the genus Glossophaga; muzzle 
longer, broader; tongue longer, covered with filiform papilla; tail 
