2. PTEBOPUS. 19 



c'. Legs clothed to the base of the claws. 



5. Collar scarcely distinguishable by 



coloiu- from the fur of the back ; fore- [p. 26. 



ai-m 5" Pt. pselaphm, 



6. Collar pale yellowish white above, 



very distinct ; forearm 6"'4 Pt. vetulm, p. 27, 



b'". Fii'st upper premolar persistent, as large as 



one of the inner lower incisors; molars 



acutely tubercular; third lower premolar 



with an antero-internal broad projection. 



c^. Ears slightly shorter than the muzzle, 



nearly naked ; legs clothed to the ankles. 



7. Collar bright reddish brown, shoulders [p. 29. 



pale yellow ; forearm 4"-5 Pt. anetteanus, 



c'". First upper premolar persistent, as large as 

 (or larger than) one of the lower outer in- 

 cisors ; second lower premolar with an 

 antero-internal basal projection, 

 rf'. Ears scarcely longer than the fur of the 

 head, nearly naked ; legs naked. 



8. Collar scarcely distinguishable by colour 



from the fur of the back ; shoulder- 

 glands with tufts of bright yellow [p. 30. 



hairs ; forearm 3"'6 Pt. molossinus, 



b". Fur of the back slightly appressed, unlike that 

 of the neck ; ears as long or longer than the 

 muzzle. 

 d". First upper premolar small or deciduous ; 

 molars rather narrow. 



9. Ears much longer than, the muzzle, attenu- 



ated above and pointed ; legs clothed [p. 31. 



above and beneath ; forearm 6" '2 Pt. poliocephalus, 



e'". First upper premolar persistent, nearly equ&l 

 to one of the upper incisors in cross-sec- 

 tion ; molars very broad and strong. 



10. Ears as long as the muzzle, obtusely 



pointed ; legs clothed, above, as far as 



the ankles ; fur and membranes very [p. 82. 



pale-colom'ed ; forearm 6" Pt. leucopterus, 



h. Fur straight, rarely woolly on the legs ; eais gene- 

 rally as long or longer than the muzzle. 

 v. No premolar or molar with an anterior basal pro- 

 jection. 

 b". First upper premolar persistent, as large as one 

 of the lower incisors. 

 6'". Fur of the back appressed, on the interfe- 

 moral and legs erect, woolly. 



11. Ears shorter than the muzzle; the last 

 upper molar as large as one of the lower 

 outer incisors; fur ferruginous brov^n; 



forearm 5"-3 Pt. rayneri, p. 33. 



12. Ears slightly longer than the muzzle ; the 

 last upper molar very small, scarcely as 



large as one of the lower inner incisors ; [p. 34. 



fur yellowish brown ; foream 4"-5 Pt. lomhocensis, 



c'. First upper premolar minute, generally deciduous. 

 d". Fur of the back straight, directed backwards, 



o2 



