Vol. XV, pp. 151-152 June 20, 1902 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTION OF A NEW BAT FROM COLOMBIA. 

 BY MARCUS W. LYON, JR. 



The writer has recently had opportunity to examine a fine 

 series of skins and skulls of Vamjoyrops lineatus collected by 

 Mr. Wni. T. Foster,, in Paraguay, the type locality of the 

 species. A comparison of the Colombian bat, previously as- 

 sumed to be V. lineatus* with these topotypes, shows the 

 former to be specifically distinct, though closely related to true 

 lineatus. Until now, apjmrently no name has been proposed 

 for the Colombian bat. 



Vampyrops umbratus neAv species. 



Type from San Miguel, Colombia. No. 8180, Bangs' Collection in 

 Museum of Comparative Zoology. Skin and skull of adult male, collected 

 June 8, 1898, by W. W. Brown, Jr. Original No. 234. 



General characters. — Allied to Vampyrops lineatus (E. Geoff roy); differs 

 in having a larger skull, darker coloration and with the light markings 

 on the face and back less clear and less sharply defined. 



Bescnption of type. — Color above, seal-brown (Ridgway), bases of the 

 hairs somewhat lighter, approaching a dark hair- or broccoli-brown; 

 below, practically the same, but duller and a little lighter. A fine 

 whitish line about 1 mm. in width runs from the back of the neck along 

 the middle of the back to the edge of the interfemoral membrane. The 



*Robinson and Lyon, Proc. U. S. Nat. Mus., XXIV, p. 149, 1901. 



27— BIOL. SOC. WASH. VOL. XV, 1902. (151) 



