334 PROCEEDINGS OF THE ACADEMY OF [1889. 



Megaderma frons. (Plate x, fig. 2.) 



Prebrachium with a vertical line from the angulated portion of 

 the free margin. Endopatagium with six intercostal lines. Inter- 

 costo-humeral composed of two lines at its appearance from the 

 proximal end of the humerus ; these unite to form a single line be- 

 low the elbow. The internal-cutaueous with six inferior vertical 

 lines and an equal number of superior vertical. No superior oblique 

 lines are seen. A separate pannicular line lies beyond the range of 

 the internal-cutaneous. The predigitals of the fourth interspace 

 three in number ; all are short, — the most proximal of the three being 

 the longest. The postdigital is small and appears a short distance 

 above the metacarpophalangeal joint of the fourth finger. The pre- 

 digital of the third interspace appears at the metacarpophalangeal 

 joint of the fourth digit. The postdigital from the first interpha- 

 langeal of the third digit. Two delicate trabecular extend across 

 the third interspace between the metacarpophalangeal of the fourth 

 and the first interphalangeal joint of the third finger.* The inter- 

 femoral membrane shows a short caudal line with a long conspicuous 

 line extending thence to the ankle. The movable tips on ends of 

 osseous phalanges, exceedingly rudimental. 



Rhiolophus philippinensis. 



The prebrachium without characteristic lines. 



The endopatagium with well-marked lines extending from body, 

 thirteen in number, the lowest being the stoutest. 



The intercosto-humeral line extends beyond elbow before being 

 deflected downward. 



The internal-cutaneous system lies below elbow and yields the 

 oblique line only. This traverses the membrane to the region of 

 the phalanges of the fifth finger. The muscle-mass on the fifth 

 metacarpal bone without oblique lines. Pocket at radiocarpal angle. 



In fourth interspace there are two postdigital nerves. One of 

 these appearing at distal third of the fifth metacarpal bone, and one 

 at the metacarpophalangeal joint. A single postdigital nerve is 

 seen at the distal fifth of the fourth metacarpal bone. In the third 

 interspace there are two nerves, one appearing from each of the 

 metacarpophalangeal joints. 



The third phalanx of the third finger small, one-eighth of the 

 length of the second phalanx. The third phalanx of the fourth 



* In a second specimen in bad condition, which came to hand while the 

 paper was going through the press, these pigment spots were absent. 



