1889.] NATURAL SCIENCES OF PHILADELPHIA. 335 



finger a mere nodule and deflected somad ; that of the fifth finger 

 is absent. 



The interfemoral membrane with a conspicuous caudotibial line. 

 Phyllorhina commersonii. 



The intercostal lines rudimentary or absent. The intercosto- 

 humeral line scarcely reaches the line of the elbow. In the fourth 

 interspace there are five predigital lines. The third phalanx of the 

 third finger is small and deflected somad on the free margin of the. 

 membrane of the third interspace. The third phalanx of the fifth 

 finger is present and of the same character as in Bhinohphus 

 phi/ippinensis. The remaining features as in this species. 



Phyllorhina diadema. 



Resembles B. philippinensis. The intercostal lines are numerous. 

 There is but one predigital nerve in the fourth interspace. 



Phyllorhina galerita. 



The predigital and the postdigital nerves appear at the middle of 

 their respective metacarpal bones. 



Epomophorus franqueti. 



The prebrachium shows the tendon of the occipito-pollical muscle to 

 be thread-like and to divide at the wrist into two branches. It lies a 

 short distance below the free margin of the membrane. At the 

 distal third of the forearm an oblique line reaches it from beneath. 

 No lines are raised above the plane of membrane as in other genera 

 of the Pteropidse. 



The intercostal lines small but numerous ; not counted. The 

 crural line scarcely larger than the others. The intercosto-humeral 

 line small, rudimentary. The line ends abruptly in an open plesh 

 before reaching the elbow. A coarse network of branches are seen 

 on the line of the elbow. A few branches reach the free margin of 

 the membrane. 



The superior oblique line branching off from the internal cuta- 

 neous inconspicuous. The main internal cutaneous line reaches the 

 middle of the mesopatagium and is thence abruptly deflected down- 

 ward and outward and terminates in the neighborhood of the second 

 phalanx of the fifth toe. One branch ends at the metacarpo- 

 phalangeal joint, and another at the free margin of the membrane. 

 The radio-metacarpal angle is crossed by a membrane. 



The predigital nerve appears at the metacarpo-phalangeal joint 

 of the fifth finger and the postdigital at that of the fourth. Two 



