48 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



the Pacific Slope ; they were all taken between February 14 and March 

 14, 1897. The other specimen is from Punta Arenas, collected by Mr. 

 Colburn, Jan. i, 1898. 



This species has not been previously recorded from north of Orange Bay 

 and Port Famine, the latter being the type locality. The present material 

 extends its known range along the Cordilleras to about latitude 48°. 



Oryzomys coppingeri (Thomas). 



Hespevomys {Calomys) coppingeri Thomas, P. Z. S., 1881, 4, figs, i, 2, 

 ear and foot. Tom Bay, Cockle Cove. — Milne-Edwards, Miss. 

 Scient. du Cap Horn, VI, Zoologie, Mamm., 1890, 26, pi. iv, fig. 2, 

 animal, pi. viii, fig. 2, skull. Orange Bay, Tierra del Fuego. 

 \Oryzomys\ coppingeri Trouessart, Cat. Mamm., ii, 1897, 529 (ex 

 Thomas and Milne-Edwards). 

 This species is unrepresented in the present collection. Following is 

 Mr. Thomas's original description of the species, which has since been 

 reported by Milne-Edwards from Orange Bay, southern Tierra del Fuego, 

 where he says the naturalists of the Mission Scientifique du Cap Horn 

 (Mamm., p. 26) found it very common and captured a large number of 

 them. 



" Hesperomys (Calomys) coppingeri, sp. nov. 



"A skin from Tom Bay, and two specimens in spirit 'caught with trap 

 on a wooded islet about one acre in extent' in Cockle Cove (Feb. 9, 1879). 



" Fur very long and soft, fully half an inch in length on the back. Ears 

 rather short, nearly hidden in the fur. Whiskers of medium length, the 

 shorter lower ones forming a thick shining white fringe along the upper lip. 

 On the head and back the wool-hair is of a deep slaty blue for nine tenths 

 of its length ; then follows a subterminal band of yellow ; and the extreme 

 tip is black. Mixed with this wool-hair there are a considerable number 

 of longer black hairs, the resulting general colour being very similar to 

 that of the common Water-Vole {Arvicola amphibins, L.). The dark 

 color of the upper side extends on the limbs to the wrists and ankles, the 

 feet being covered with short shining white hairs. The ears are thickly 

 clothed with short woolly hairs similar in colour to the fur of the back. On 

 the sides the yellow tips of the hairs gradually become lighter, and on the 

 belly they are nearly pure white, the basal portion of the fur, however, 

 from the chin to the anus, still being slate-coloured. 



