A460 ABBOTT’S KILIMA-NJARO MAMMALS—TRUE, ‘ 
senting the appearance of grooved bristles when examined with a lens. 
Mingled with these hairs are numerous longer on — of a black color. 
The extremity of the tail is sufficiently covered with hairs to hide the 
seales. 
The skins agree in every respect with Peters’s description,* except 
that the feet appear to be somewhat shorter, measuring about 21 milli- 
meters. 
19718. Female. Mount Kilima-Njaro, December 26, 1889, 5,000 feet. 
12716) Kemale. Mount Kilima-Njaro, November 14, 1889, 4,000 feet. 
19717. Male. Mount Kilima-Njaro, November 7, 1889, 5,000 feet. 
19756. Female Mount Kilima-Njaro, 1889. (Alcoholic.) 
19757. Male. Mount Kilima-Njaro, 1889. (Alcoholic.) 
19758. Male, young. Mount Kilima-Njaro, 1889. (Alcoholic. ) 
19759. Male, young. Mount Kilima-Njaro, 1889. (Alcoholic.) 
Mus barbarus Linné. 
These specimens present a singular general resemblance to those of 
M. arborarius. The tail, feet, and ears are of the same color as in that 
species, and the fur is partly made up of fine channeled bristles. They 
are conspicuously different in the color of the back, which has the rows 
of light spots characteristic of M. barbarus. The median dark line is — 
nearly or quite without the rusty-tipped hairs by which the color of the 
lateral dark bands is varied. 
The thumb and fifth finger are rudimentary. 
Dr. Abbott notes on one of the labels that the species is common. 
Dimensions of a specimen preserved in alcohol. No. 18996. 
mm. 
Length of head and lodly. -..2. 2.22. cee ~2 2 ean ee ee 82. 0 
Ween ath Of tailiccG fo: ese -e is ae ey are ee ee 94.5 
Length of hind foot (with claw)s.-: Jo. 52). 5.2225 eo ee = ee ee 27.0 
Hei€ht of ear f¥om crown of head! ...2-. 2222) -ee eae ere eee eee 2.0 
49311 Male. Mount Kilima-Njaro, November 7, 1889, 5,000 feet. 
19712. Male, young. Mount Kilima-Njaro, November 14, 1889, 5,000 feet. 
18996. Female. Taveta. (Alcoholic). 
19738. Female. Mount Kilima-Njaro, 1889. (Alcoholic. ) 
19739. Male. Mount Kilima-Njaro, 1889. (Alcoholic. ) 
19740. Male, young. Mount Kilima-Njaro. (Alcoholic.) 
Mus aquilus sp. nov. 
The collection contains a single apparently adult specimen of a 
medium-sized mouse, with the dentition of the typica subgenus Mus, — 
but of rather peculiar general appearance. According to the label, the 
mouse was procured on Mount Kilima-Njaro at an elevation of 8,000 
feet. It had been killed by a hawk. I have been unable to associate 
it with any recognized species, and will therefore describe it under the 
name of Mus aquilus. 
*Reisc nach Mossambique, 1852, p. 152, P1. 36, Fig. 2; Pl. 35, Fig. 7. 
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