Dr. F. A. JENTINK. MAMMALS. 9 



Skull : 



basai length 37 



greatest breadth 21.5 



nasals, length 15 



diastema 11 



upper molars 8.5 



This female has head and body much longer than tail, therefore it cannot belong to 

 one of the species described by OLDFIELD THOMAS, MlLNE-EDWARDS and Peters, as ail 

 thèse animais hâve the tail longer than head and body (Nova Guinea, Vol. V, Zoologie, 

 p. 365); at the same time it cannot be my multiplicatus as it has not more than six inter- 

 dental palate-ridges besides a quite différent hair-clothing; although it has very much in 

 common with my so much smaller sexplicatus, the hairs of the underparts in that species 

 are white to their base, - I mention that multiplicatus and sexplicatus hâve contrary to the 

 other Pogûîiomjs-species head and body longer than tail, like in Lorentzii. 



I describe this new species as follows: ail hairs very soft to the touch ; upperparts 

 and sides of the body of a mouse-colour, mahogany brown tipped ; chin, breast and belly 

 with mouse-coloured white tipped hairs ; hands and feet white ; round eyes a dark colored 

 ring; tail with dark coloured scales above, underside with white scales ; each scale with a 

 single short hair. Ears broadly rounded off above; whiskers numerous and very long, the 

 longest measure 70 mm. 



Palate-ridges eight in number (fig. 12), six are interdental, like the number in P. sex- 

 plicatus; however a comparison of them with the figure of the palate-ridges in that species 

 (plate XVI, fig. 3 of my paper in "Nova Guinea, Vol. V, Zoologie") clearly shows the différence; 

 moreover P. Lorentzii is a much larger and differently coloured animal. 



10. Pogorlomys leucogaster n. sp. 



N°. 119. Adult female (in alcohol), Alkmaar (300 meters), August II. 1907. Tail incomplète, 

 N°. 78. Half-grown maie (in alcohol), Sabang, June 1907, 



N°. 106. Young maie (in alcohol), Alkmaar, July 30. 1907, and a very young maie (in alcohol), 

 Bivak Island, July 3. 1907. 



Mammae o — 2 =4. 



Some measurements of the adult female in the flesh, in mm. : 



head and body 175 . 



hindfoot 35 



ear 16 



Skull: 



basai length 37 



greatest breadth 22 



nasals, length 14 



diastema 11.5 



upper molars 7 



Fur much shorter than in Lorentzii, but also very soft to the touch; upperparts with 

 the hairs mouse-coloured, tipped with light brown ; hands and feet blackish, especially on the 

 fingers and toes; tail black. Hairs of ail the underparts pure white throughout. Whiskers 

 numerous. Ears broadly rounded off above. 



Nova Guinea. IX. Zoologie. 2 



