ipaALANSEElD^. 



131 



opposable to the rest. 

 Tail tapering, its ter- 

 minal half compara- 

 tively short-haired . . 9. Pseudochibus, p. 166. 

 v. Fingers not oppos- 

 able. Tail evenly 



bushy to end 10. Teichosubus, p. 184. 



¥. Tail naied all round ter- 

 minally 11. Phalangbe, p. 193. . 



B. Tail rudimentary, not visible externally. Phascolaxctinae. 

 c. Ears thickly hairy. Fore toes oppos- 

 able, as in Pseudochirus 12. Phascolaectus, 



[p. 209. ' 



II. Ceaniai Chaeactbes. 



A. Cheek-teeth minute, rudimentary Tarsipedinse. 



a. Dentition (at most) : — 1. yTcTo' ^' o' 



P- I'.l'.l'.l ' ^- frlfl = 22. 1. TAESiPiss, p. 132. 



B. Cheek-teeth well developed. 



b. BuUse rounded, little prominent, their 



vertical much less than their horizontal 

 diameter. One or more premolars, ad- 

 ditional to p.*, generally present Fhalangerinse. 



a}. Molars 5 (rarely r). Basal length less 



than 30 miUim. 

 a". All upper premolars and lower p.' 

 long and pointed, as high as the 

 molars. 

 a?. Both upper and low^er p.* long, 



equalling the molars in height 2. Aceobateb, p. 136. 

 6'. Upper p.* small, shorter than 

 either the molars or p.^ Lower 



p.* absent 3. Dibtcechueus, p. 139. 



V. Upper p.^ and p.^ much smaller 



than p.* Lower p.' minute 4. Deomicia, p. 140. 



V-. Molars J . Basal length more than 



30 millim. 

 c^. Lower p.* small, not equalling the 

 molars in height, 

 c*. Molars rounded. Upper i.' r j^g 



shorter than canine. Supra- . 5_ Gymnobblideus, ' 



orbital edges ridged j g Petauetjs, p. 160. 



(P. Molars oblong. Upper i.° _ as 

 long as or longer than canine. 



Supraorbital edges rounded . . 7. Dactylopsixa, p. 159. 



dP. Lower p.* large and functional, as 



high as or higher than the molars. 



e^. Upper p.' well developed, but 



little smaller than p.* ; the 



latter placed quite in the 



general series. Molars ^tb , g. Petadboidbs,p. 163. 



marked crescentic ridges | g Pseudochibus, 



[p. 166. 

 k2 



