22 REPORT ON /OOLOGY, MDCCCXLIII. 



(1) Macroglossus, lower phalanx of thumb elongated, \viugs on the back of 

 the feet, as far as the roots of the toes. 



(U) Wings as iu (ci) ; head extended ; index-finger with a claw. (2) 

 Pteropus. No tail, lower phalanx of thumb very short. (3) Epomophorus, 

 Beiin. No tail, neck with a tuft of hair on each side ; lower phalanx of 

 thumb very long, connected, (E. wltilii, E. yambianus). (4) Eleuthentra, 

 Gray. Tail short, free in the indentation in the middle of the narrow inter- 

 femoral membrane ; lower phalanx of thumb, (?) neck without glands on 

 the sides (E. liotleiitotta). (5) Xantharpyia, Gray. Tail with the base included 

 in the under side of the inter-femoral membrane ; neck without glands ; 

 lower phalanx of thumb rather long (Pteropus amplexicaudatus, Geoffr.) 



(f) Wings as in (a), head short, swollen; nostrils tubular, molars 4 5 : 

 (6) Cynopterus (Packysoma). Tail short, inclosed in the inter-femoral mem- 

 brane ; lower phalanx of thumb elongated, wing membrane attached almost 

 to the root of the toes. (7) Megeera. No tail, lower phalanx of thumb very 

 short,' wings as in (6). 



(d} Wings from the middle of the back, head and nostrils as in (c), index- 

 finger with a claw. (8) Harpyia. 



(e) Wings as in (d), head elongated, conical ; index-finger without claw. 

 (9) Cephalotes. Pteropus arr/entaius, Gray, and Xantharpyia amplexicaudata 

 are briefly characterized. 



ISTIOPHORA. A similar arrangement of the genera in 

 his tribe Phyllostomina, with several new ones, has been 

 given by Gray. (1. c. p. 15.) 



(a) Ears meeting above the forehead ; forehead with a tolerably dee}) 

 depression ; nasal leaflet lanceolate, erect ; tail elongated beyond the inter- 

 femoral membrane. Wing membrane from the tarsus ; lower phalanx of 

 thumb of medium size : India and Africa. (1) Rhinopoma, 



(K) Ears large, united above the forehead by a transverse lamina ; fore- 

 head simple, convex ; nasal leaflet as in (a) ; no tail ; inter-femoral and wing 

 membrane large ; wing membrane from the feet ; lower phalanx of thumb 

 elongated. (2) Megaderma. Nares simple : India. (3) Licia, Gray. Each 

 nostril covered with a membranous, valvular, elongated fold : Africa. 



(c;) Ears, forehead, and nasal leaflet as in (b) ; chin with a deep narroAv 

 depression : South America. (4) Macrotus, Gray. Inter-femoral membrane 

 large, truncated ; tail above the membrane, elongated : Hayti. 



(d) Ears separate, on the sides of the head ; forehead simple, convex ; 

 nasal leaflet lanceolate, convex ; chin, anteriorly with a narrow, deep, tri- 

 angular hollow ; tongue and face long: South America. (5) Phyllophom, 

 Gray. 1 nter-fcmoral membrane wide, truncated; tail short, inclosed, point 

 above. (0) Qlossophaga. Inter-femoral membrane deeply excised ; no tail. 



