562 On n new genus of the Plantigrades. [July, 



set on ; the exterior, quadrannulated from the base with hoary or ful- 

 vous and with black ; the interior, dusky at the base, fulvous upwards. 



Structure and Size. Feet. Inch. 



Tip of snout to root of tail (dorsal), 1 6 



Length of head (snout to jut of occiput straight), 4 



Tail only, 11 



Tail and terminal hair, 1 11 



Snout to fore angle of the eye, 1$ 



Thence to base of ear (lobe), , 1^ 



Girth of body, behind shoulder, 8 



Mean height, 8 



Elbow to tip longest finger, 5$ 



True knee to tip longest toe, 7§ 



Top wrist to base finger (superior), If 



Longest finger, 1 § 



Its nail (straight), 0§ 



Jut of os calcis to base long toe (superior), 2% 



Longest toe, 1§ 



Its nail (straight), 0§ 



Length of external ear (vertical), If 



Its free exsertion from the head, or depth of the helix,.. 0/j 



Weight of the animal, 4 lbs. 



It is impossible to describe the general and particular external 

 conformation of this animal more precisely than by saying that they 

 are Gulo-herpestine, reference being had to the more slender-bodied 

 species of the former genus, such as Orientalis and Nipalensis. In 

 Herpestes, the structure is more vermiform, with greater length of 

 tail and of neck, (palpably noticeable in the skeletons ;) and the hands 

 and feet are shorter in proportion to the leg and arm, the metacarpi 

 and metatarsi being more compactly knit. In Gulo as before limited, 

 the bulk of the body aid length of the neck, agree with those of our 

 animal ; but the tail is shorter ; the anterior limbs heavier and their 

 talons more decidedly fossorial ; the agreement in these latter respect* 

 being closer with Herpestes, and indeed, almost identical in reference 

 to the proportional strength and size of the anterior and posterior 

 extremities, with their digits and talons. The talons, however, are, 

 in our animal, more fossorial, that is, blunter and stronger, than in 

 Herpestes. In the general contour of the cranium, and in the number, 

 position and character of the teeth, Urva agrees with Herpestes, with 

 the two following marked differences, and approximations of our 

 animal to Gulo, viz. : the orbits are incomplete, and the ample swell of 

 the parietes reduces the longitudinal and transverse cristw, but especi- 



