160 PHALANGEETD^. 



following order — 3, 5, 2, 1. Hind fourth and fifth toes also 

 markedly longer than usual. Carpus with a peculiar prominent 

 proximal pad in addition to the usual five palm-pads (PI. XXI. 

 fig. 1). Claws long, less curved than in Petaurus. Tail long, cylin- 

 drical, evenly bushy, its extreme tip more or less naked below. 



Skull narrow, but with very strong and widely expanded zygo- 

 mata. Interorbital region markedly contracted, its edges smoothly 

 rounded, without postorbital processes. Squamosal portion of 

 zygomata but little inflated by air-cells. Palate quite complete. 

 Lower jaw without any trace of a connection between the masseteric 

 fossa and the inferior dental canal. 



Upper incisors (fig. 4, p. 127) very large ; i.' directed nearly 

 horizontally forwards, and wearing down quite in front instead of 

 below. Canine small, p.' placed close to it and almost precisely 

 similar to it in size and shape ; p.' minute, sometimes absent ; p.* 

 of medium size, about equal to the canine in cross section, but much 

 shorter vertically ; its longer axis oblique, bent inwards in front. 

 Molars oblong, quadricuspid. Lower i.' proportionally longer than 

 in any other genus. Minute intermediate teeth from two to four 

 in number, and apparently representing, when four are present, 

 i.", i.^ p.', and p.*, of which the most frequently absent are the two 

 middle ones, i.' and p.' 



Range. Papuan and North Australian subregions. 



1. Dactylopsila trivirgata. 



Dactylopsila trivirgata, Gray, P. Z. S. 1858, p. Ill, pi. Ixiii. (animal), 



figs. 1-4 (skull) ; Gerrard, Cat. Bones Mamm. B. M. p. 121 (1862) ; 



Gray, P. Z. 8. 1866, p. 220 ; Krefft, Mamm. Austr. text to pi. vii. 



p. 3 (1871) ; Coll. Zool. Jahrb. ii. p. 932 (1887) ; Jent. Cat. Ost. 



Leyd. Mns. p. 316 (1887) 

 Phalangista trivirgata, ScUeg. Dieremt. p. 166 (1872). 

 Phalangista (Dactylopsila) trivirgata, Peters Sr Doria, Ann. Mus. 



Genov. xvi. p. 673 (1881). 

 Dactylopsila alhertisi, Peters ^ Doria, Ann. Mus. Genov. vii. p. 642 



(1875). 

 Phalangista (Dactylopsila) angustivittis, iid. op. cit. xvi. p. 674 (1881). 



Steeped Phalansee. 



Fur close, thick and woolly, rather harsh. General colour white, 

 with dark longitudinal stripes. Ears oval, rounded, nearly naked, 

 except basally outside. Ground-colour of face and back white or 

 pale yellowish ; central black stripe commencing between the eyes, 

 broadening rapidly, and passing down the back to the rump, where 

 it again narrows, and is continued along the upper surface of the 

 tail until it is lost in the dark terminal or subterminal band. 

 Lateral stripes each commencing on the side of the nose, passing 

 across the eye and behind the ear down the sides of the neck and 

 back, sending oflf a short branch down in front of the shoulder. 



