660 TONATIA. MICRONYCTERIS. 



dorsal surface of second metatarsal; otherwise similar to T. bidens 

 Spix. 



Color. Above brown, base of hairs whitish; beneath paler brown. 



Measurements. Total length, 88.9; tail vertebrae, 12.7; forearm, 

 55.8; third finger, metacarpal, 41.9; fourth finger, metacarpal, 44.4; 

 fifth finger, metacarpal, 46.4; tibia, 25.4; foot, 15.2; ear, 33; tragus, 

 10.9. Skull: occipito-nasal length, 26.5 ; Hensel, 20; zygomatic width, 

 17; interorbital constriction, 4; height of braincase, above bullae, n; 

 width of braincase, u; palatal length, 12; width of palate across 

 last molars from outer edge, 9; length of upper molar series, 6; 

 length of mandible, angle to outer edge of incisor, 17; length of 

 lower molar series, 9.5. 



The species of the genus MICRONYCTERIS are closely allied to Vam- 

 pyrus, but contain among them some forms of small size. They 

 differ from the genus just named, beside other characters, in not 

 having the horseshoe-shaped membrane free in front, and the wings 

 are not attached to the backs of the feet, but either to the sides or to 

 the extremity of the tibiae. 



145. Micronycteris. 



T 2-2. p I-I . p 2-2. M 3-3 _ 



A-iZi; <-7=i> ^-3=3; M. -34. 



Micronycteris Gray, Proc. Zool. Soc., 1866, p. 113. Flower & 

 Lydekker, Mamm., Living and Extinct, 1891, p. 673. Type 

 Phyllophora megalotis Gray. 

 Schizostoma Gerv., Exped. Casteln., Amer. Sud., Zool., 1855, p. 49. 



(nee Bronn, Mollusca, 1835.) 

 Vampyrella Reinh., Vidensk. Meddels. Naturh. Foren. Kjobenh. 



3 Aartis, iv, 1872, p. in. 



Front margin of nose-leaf, which is small, fastened to the under- 

 lying skin ; ears bound on inner sides at their bases by a band hidden 

 in the fur; the ears are large and placed far apart; ear conch termi- 

 nating in a lobe; tail perforating interfemoral membrane, short; wing 

 membrane from the ankles; forearms and legs hairy or naked. Skull: 

 long, narrow; constriction greater at extremities of nasals than 

 between the temporal fossae. 



KEY TO THE SPECIES AND SUBSPECIES. 

 A. Wings from tarsus or metatarsus. PAGE 



a. Legs and forearms hairy M. hirsutus 661 



b. Legs and forearms bare. 



