120 LEPIDOLEMUR 



of teeth in front; posterior margin of palate level with anterior edge 

 of last upper molar ; premolars with one external cusp ; fourth digit 

 longest ; tail more than half the total length. 



Color. Top of head dark brown, hairs tipped with grayish white ; 

 lower sides of neck above shoulders dark rufous; entire upper part 

 reddish, becoming paler on rump, but brighter on flanks ; dorsal stripe 

 from neck to middle of back very indistinct on lower back ; outer side 

 of arms like back ; legs paler and duller ; chin and throat white ; under 

 parts buffy; inner side of limbs mouse gray; tail at base like back, 

 middle portion sooty, apical portion reddish brown. Ex type in Paris 

 Museum. 



The L. dorsalis Gray, is the same as L. mustelinus. The type is 

 in the collection of the British Museum, and may be described as 

 follows. Top and back of head grizzled grayish brown with an indis- 

 tinct dark brown stripe in the middle of the crown ; upper part of body 

 reddish brown ; on the lower back the tips of the hairs have all been 

 worn away leaving only the blue under fur visible ; shoulders and outer 

 side of limbs like the back; under part of body and inner side of limbs 

 grayish fulvous, the plumbeous under fur showing through in many 

 places ; hands reddish brown, feet paler brown ; tail above bluish gray 

 on basal half, (tips of hairs worn away), pale rufous on apical half, 

 beneath pale rufous. This type specimen is slightly smaller than 

 Geoffroy's type, and its tail a little longer, but the color of the 

 upper parts and texture of the fur is very like L. mustelinus. The 

 skull of the type of L. dorsalis had been mislaid and I did not see it. 



Another specimen in the British Museum attributed to L. dorsalis 

 has lost nearly all the reddish tips of the hairs, and is nearly a plum- 

 beous color, but gray on head and between the shoulders, while a brown 

 stripe extends from the forehead to the middle of the back. Gray 

 states there is no dorsal stripe, and his type has none, but in these ani- 

 mals the absence or presence of a dorsal stripe may be regarded more 

 as an individual than an important specific character, as its depth and 

 distinctness varies greatly among examples. The tail is somewhat 

 darker. I am unable to discover any character by which these speci- 

 mens can be separated from L. mustelinus. The skull of this last 

 individual measures as follows : occipito-nasal length, 49 ; Hensel, 40 ; 

 zygomatic width, 35 ; intertemporal width, 18 ; palatal length, 17 ; width 

 of braincase, 30; median length of nasals, (broken) ; length of upper 

 molar series, 20 ; mandible wanting. A specimen in the Paris Museum 

 is very red on back, and tail red on basal half, rest dark brown. 



