80 DR. GUNTHER ON MAMMALS FROM MADAGASCAR. [Feb. 2, 
terior largest, the posterior smallest. The enamel of every molar 
forms two or three open loops on each side; one of these loops 
penetrates to the other side in each of the upper molars. 
Fig. 3. 
Skull of Brachytarsomys (natural size). @. Upper molars (6 times magnified). 
6. Lower molars (6 times magnified), 
BRACHYTARSOMYS ALBICAUDA. (Plate XVI.) 
Back greyish brown, more rufous on the sides ; lower parts white, 
in old males light bay-coloured. Head reddish brown, the hairs 
black-tipped ; nose and lips blackish, the long and strong moustache 
deep black. Limbs coloured as the neighbouring parts; soles light 
flesh-coloured. Anterior half of the tail black, posterior white. 
Ears narrow, shorter than their distance from the eye, naked. The 
longest hairs of the moustache reach far beyond the ear. Claws 
moderately. developed ; thumb with a flat nail. 
Of the size of a common Rat. 
millim, 
Thenpth ofhead and bodys. S02 Ge teen oe «wort sw ihn 210 
55 Tl Baap ae ante Aide ada Pema ae teh SM Mags By acy 185 
9» CRT cae eactousce Aste sss ciate an «te oue ees agte ts O71 Rares 14 
Width otieadt ec: cht ae cried sane s Raion che © aetna 9 
ent Ob BRE treie oe te upcasce core pi oes 2 ries eel eee 19 
53 RETIREE ns es eee a seaweeds ee ee 33 
Length of lower lems. oc ree asec oe pe ee pes 38 
a foot (from heel to end of third toe) .......... 34 
io 7 STril yuppies cated rte oa rte RAS cs Gor, - 42 
Distance between incisors and molars.............--++5 12 
Length of foramenimeisivaml <2). 22e 0d 6 el. SO Re 6°5 
% EDPCF MOMMIES 12. eee Sa. cia abe niet een fee 8 
