646 DERMONOTUS. MORMOPS. 
5.5; length of upper molar series, 4; length of mandible, 11; length of 
lower molar series, 4.5. 
a.—fulvus (Clilonycteris), Thomas, Ann. Mag. Nat. Hist., 6th Ser., 
X, 1602. p. 400: 
Las PENas Bat. 
Type locality. Las Penas, State of Jalisco, Mexico. 
Genl. Char. Smaller than D. davyi, but brighter colored. Skull 
small, narrow. 
Color. Brilliant fulvous chestnut. 
Measurements. Total length, 60-64; tail vertebrze, 20-21; fore- 
arm, 42-43; longest finger, 73-74; thumb, 6.5—7; tibia, 16-18; foot, ro. 
The members of the next genus, MorMmops, are remarkable for the 
peculiar formation of the skull, the forehead being highly elevated at 
almost a right angle to the face, presenting a unique appearance. 
Four forms are found within the limits covered by this work, and 
one is extra-limital, Island of Curacoa. 
159. Mormops. 
I44; c=; P=; M. 
4—4 {ei Sao 
J. A. G. Rehn, A revision of the Genus Mormoops (sic), Proc. 
Acad. Nat. Scien. Phil., 1902, p. 160. 
Mormoops (sic) Leach, Trans. Linn. Soc., x111,* 1820, p. 76. Type 
Mormoops! blainvillii Leach. 
Crown elevated high above line of face; nostrils destitute of cuta- 
neous appendages and directed downward; ears close together, some- 
times united by prolongations from the muzzle on their inner mar- 
gins; cutaneous processes on chin and sides of lips. 
KEY TO THE SPECIES, AND SUBSPECIES: 
A. Chin pad divided deeply. 
a. Second upper premolar broad as long; inter- PAGE 
nal lobe moderately developed.......... M. megalophylla 648 
b. Second upper premolar broader than long; 
internal lobe much developed) .s5= a... en M.m. semcula 648 
*Miller & Rehn in their List, p. 277, give the date of this publication as 
1822; Rehn in his Review of the genus,1.c. p. 160, gives it as 1820, and Palmer 
in his Index Gen. Mamm., as 1821. The paper was read before the Society 
the 22d February, 1820, and it is reasonable to believe it was published in 
that year. 
