ALLEN : mammalia: camelid^. 19 



Cameliis gita)iaco Trailc, Mem. Wern. Nat. Hist. Soc, IV, 1823, 492, pi. 

 Auchoiia gnannco Meyen, Nov. Ac. Acad. Leopold. -Caes., XVI, 1833, 



552, pi. Ix. 

 Lama giiauaco Gay, Hist. Chili, Zool., I, 1847, ^SS- 

 Lama giianacns Grdiy, Cat. Mamm. Br. Mus., Ungul. Furcip., 1852, 257, 



pi. xxiv, fig. 2, skull. 

 Guanaco, Cunningham, Nat. Hist. Strait Magellan, 1871, 106-109 (habits). 

 — Hatcher, Rep. Princeton Univ. Exped. Patagonia, I, pp. 58, 62, 

 271, and elsewhere /rt!55/w (habits and distribution). 



In winter pelage the general color above is reddish brown, darkening a 

 little on the rump and tail, this being the color of the long over hair, 

 beneath which is a dense, matted covering of short woolly under fur, of 

 much lighter color; flanks and ventral surface white; head all around and 

 ears gray, lighter or paler on the throat and sides of the face, and darker, 

 dusky gray on the whole front and top of the head ; edges and tips of the 

 ears and the muzzle whitish ; fore limbs externally like the dorsal surface 

 as far as the "knees," then dark grayish brown to the hoofs, more or less 

 mottled with rufous ; hind limbs externally rufous as far as the callosity, the 

 grayish passing into rufous on the metatarsus and toes ; inside of both 

 fore and hind limbs white, like the ventral surface. 



Young a few weeks old are similar in general coloration and markings 

 to the adults except that the upper parts are lighter rufous and the under 

 parts clearer white. 



A large series of specimens (about 20) of this species was taken by 

 Messrs. Peterson and Hatcher, chiefly in the vicinity of the coast near 

 Cape Fairweather, but only a small part of them have passed through my 

 hands. Mr. Peterson's measurements show that adults range in total 

 length from about 1950 to 2150 mm., with a girth of about 1270, and that 

 adult females attain very nearly the same dimensions. 



Much has been published on the habits of the Guanaco, as observed in 

 different parts of its range, by different writers, especially by Darwin, 

 Cunningham, Hudson, and Prichard, but a transcript of Mr. Hatcher's 

 observations, with a few additional notes by Mr. Barnum Brown, do not 

 appear to be out of place in the present connection. Mr. Brown's manu- 

 script notes are as follows : 



" The Guanaco, which is by far the most numerous of the large mammals, 

 ranges from Grandi Island, about 100 miles north of Cape Horn, over all 



