APR. 1903. NEW SPECIES AND SUBSPECIES OP MAMMALS ELLIOT. 173 



amid. the fur; ears black with an indication of a purple shade; 

 sides of face pale brown; wing and interfemoral membranes pur- 

 plish brown; feet black. 



Measurements. Total length, 87; tail vertebrae, 40; tibia, 21; 

 foot, 8.5 (coll. meas.); ear, length from meatus, 19; width of ear, 

 10.5; tragus, 9 (dried skin); fore arm? (heads of both fore arms 

 gone); thumb, 5.2; longest ringer, ist phalanx, 27; 2d phalanx, 

 9; 3d phalanx, 10; 4th phalanx, 6. Skull: occipito-nasal length, 

 13; Hensel, n; zygomatic width, 8; interorbital constriction, 4; 

 width of rostrum, 5; width of brain case, 6.5; palatal length, 5; 

 length of upper tooth row, alveolar border, 4. 



I have much pleasure in giving to this very distinct species 

 the name of my friend, Mr. G. S. Miller, Jr., Assistant Curator 

 of the Department of Mammals in the National Museum, who is 

 our greatest authority on the Chiroptera. 



From M. evotis, to which it is probably nearest allied, it is 

 at once distinguishable by its different coloration and larger ears. 

 This bat seems to have been scarce, for Mr. Heller only secured 

 two specimens, both at La Grulla. 



