318 PROCEEDINGS OF THE ACADEMY OF [1889. 



The ectopatagium exhibits five predigitals, — the largest appears 

 at the distal third of the fifth metacarpal bone, and apparently 

 is the same as the single predigital of some other species of Phyllo- 

 stomidte. The longitudinal line in the fourth and third interspaces 

 conspicuous. No pubotibial line in the interfemoral membrane. 



Glossophaga soricina. 



The endopatagium without intercostal line present save the lowest 

 or crural. The intercosto-humeral a mere unbranched line near the 

 elbow. 



The mesopatagium without a superior oblique line. No fold is 

 seen at the muscle-mass of the fifth metacarpal bone or line along 

 the fifth digit. In the fourth interspace a single predigital appears 

 at the distal fifth of the fifth metacarpal element. In a second speci- 

 men a second predigital appeared at the metacarpophalangeal joint. 



Vampyrops lineatus. 



The endopatagium with four intercostals, — the lower being 

 branched. No oblique muscle lines. The intercosto-humeral line 

 is faintly expressed, barely discernible. The remaining lines as in 

 Artibeus. An oblique line from the muscle-mass. This line is con- 

 tinuous with one extending parallel to the digit to end at the termi- 

 nal of phalanx. There are eleven secondary (muscle) lines in meso- 

 patagium. 



Vampyrops helleri. 



Much the same as in V. lineatus. The line from the fifth meta- 

 carpal bone in the mesopatagium is not raised at the muscle-mas& 

 and is everywhere indistinct. 



Desmodus rufus. 



The prebrachium with the greater part with depressed tendon so- 

 that the space which is inclosed between the tendon and the free 

 margin is crescentic. 



Endopatagium. The intercostals inconspicuous, eleven (?) counted. 

 The lowest of these is the longest. The intercosto-humeral is incon- 

 spicuous and ends at a point proximal to the elbow. 



The internal cutaneous line of the mesopatagium with conspicuous 

 vertical branch in advance of the elbow and with two oblique 

 superior branches. The line ends 1mm. somad of the end of the fifth 

 digit. The secondary lines are about eighteen in number and 

 approach the radio-metacarpal angle. 



