4(3 MAMMALOGY. 



speciem Idrsutiei Imhent 'ihiis, revera tamen mollibus et levihus. Aw'i- 

 hus suhmagnis, pene sub pilis ocaiJtis. Cauda supra fusca, subiiis 

 fusco-ciiierea. Long. 6 unc. 



Form. — Body short and thick ; head large, blunt ; upper incisors 

 not grooved ; eyes small ; ears rounded, rather large, but almost 

 concealed under the far; anti-tragus large and semicircular. Thumb 

 of the fore-foot rudimentary, with a compressed blunt nail ; third 

 and fourth toes of the fore foot, nearly equal ; fifth, rather shorter 

 than the second. Hind foot, with the first toe, about half as long 

 as the second ; third and fourth, very nearly equal ; fifth, rather 

 more than half the length of the fourth. Tail cylindrical; feet and 

 tail covered with short hair. Bristles of the muzzle or whiskers 

 long and numerous. Pilage, especially on the upper parts, com- 

 posed of long and rather coarse hair and fur, and presenting a rather 

 marked hirsute appearance. 



Dentition. — Generally similar to that of the preceding, but differs 

 as follows : In the upper jaw, the second internal triangle of the first 

 molar and the internal triangle of the second are each furnished with 

 a small, sharp, posterior lobe. In the lower jaw, the first tooth is formed 

 of nine triangles; one anterior, which may rather be called an oval, one 

 posterior, three exterior, and four interior. The line of the teeth in 

 the upper jaw difiers in having internally nine salient and eight re- 

 entering, and iai the lower jaw in having externally ten salient and 

 nine re-entering, and internally twelve salient and eleven re-entering 

 angles. 



Dimensions. — Total length (specimen in spirits), from tip of nose to 

 end of tail, about six inches ; fore leg, three-quarters of an inch ; hind 

 leg, one and a half inches ; head, one and a quarter inches ; tail, one 

 and three-quarter inches. 



Colors. — Plumbeous at base of pilage, very glossy ; above and on 

 the sides uniform reddish-brown, mixed with black ; cheeks paler ; 

 under parts much lighter and inclining to brownish-gray. Tail 

 above, brown, beneath cinereous. Feet grayish-brown ; incisors on 

 their anterior surface pale orange-yellow ; whiskers pale-brown or 

 gray. 



