70 



ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



as the body ; tarsi rather long ; fur long and very soft. General tint of the 

 upper parts of the body grayish brown, with a considerable admixture of yel- 

 low ; of the sides of the body grayish tinted with yellow ; the lower portion of 

 the cheeks, and the lower half of the sides of the body are of a delicate yellow 

 colour ; the under parts of the head and body are yellowish white ; the fore 

 part of the thighs is whitish ; the rump, feet, and tail are white, excepting the 

 upper surface of the latter, which is brown ; behind each ear there is a patch 

 of yellowish white hairs. The ears are tolerably well-clothed with hairs ; those 

 on the inner side are for the most part of a yellow colour, but towards the 

 posterior margin they are brown ; externally, the hairs are also yellow, ex- 

 cepting on the fore part, where they are dusky brown. The hairs of the 

 moustaches are very long and numerous ; black at the base, and grayish at 

 the apex. The feet are well clothed with hairs which cover and nearly hide 

 the claws ; the under side of the tarsus is clothed with grayish brown hairs. 

 The tail is well clothed with tolerably long hairs which completely hide the 

 scales. The hairs on the back are of a deep gray colour at the base, broadly 

 annulated with yellow near the apex, and dusky at the apex : the longer 

 hairs are black : on the throat and belly the hairs are deep gray at the base, 

 and broadly tipped with pale yellow— towards the cheeks and sides of the 



body with a deeper yellow. The incisors are yellow. 





Length from nose to root of tail 



of tail 

 from nose to ear 



In. Lines 



6 5 



3 

 1 



4 



In. Lines 



Length of tarsus (claws included) 



1 



4^ 



of ear 



7 



Habitat, Patagonia, (April and January). 



In the arched form of the head this little animal bears considerable resem- 

 blance to a young rabbit, a resemblance which has struck almost all who have 

 seen it, I have therefore applied to it the specific name Cuniculoides . The skull 

 is figured in Plate 33, fig. 2. a., its dimensions are as follows :— 



In. Lines. 



Total length 

 Width 



1 



4 



Length of nasal bones .......•• 



of incisive foramina ......•• 



Distance between the outer surface of the incisors and the front molar upper jaw 

 Longitudinal extent of the three molars of the upper jaw 

 Length of a ramus of the lower jaw. without the incisor 



10 



. 





 

 

 

 



7 



4^ 

 5 



3f 



9f 



The molar teeth of the upper jaw are figured in Plate 33, fig. 2, c. and 





