490 Bulletin American Museum of Natural History. [Vol. XXIV, 



one standing in front of the other in a small piece of intercalated bone. 

 There is the usual wide range of individual variation in the form and relative 

 development of the various elements of the skull seen in other species of 

 deer when large series of skulls are brought together for comparison. This 

 is especially noticeable in the size and form of the nasal bones and 

 lachrymal fossse, and in the relation of the ascending branch of the pre- 

 maxillaries to the maxillaries, etc., the same wide range of individual varia- 

 tion prevailing in this species as in Odocoileus sinaloce, illustrated in a 

 former paper. 1 A rather unusual feature is a false suture, outlining what 

 at first sight seems to be an intercalated bone to fill the space between the 

 ascending branch of the premaxillary and the maxillary, but the suture 

 is superficial, appearing on the outer surface and usually not extending 

 very deeply into the bone. 



According to the experience of most travellers on the Arctic mainland, 

 the so-called Barren Ground Caribou is a migratory animal, leaving the 

 coast at the approach of winter and moving southward in great herds, to 

 return northward again in the spring. This, however, does not appear 

 to be the habit of the Grant Land Caribou, according to Commander 

 Peary's notes on them in his 'Nearest the Pole' (New York, Doubleday r 

 Page & Co., 1907). Thus, in referring to one of his hunting parties, he 

 says: "After dinner [September 11, 1905], three Eskimos came in with the 

 meat of four musk-oxen killed in Rowan Bay, and in the evening the Porter 

 Bay party returned with the meat and skins of seven reindeer killed in a 

 valley on Fielden Peninsula. These, the first specimens of this magnificent 

 snow-white animal, were from a herd of eleven surprised in a valley close 

 to Cape Joseph Henry, and among the seven was the wide-antlered buck 

 leader. These beautiful animals, in their winter dress almost as white as 

 the snow which they traverse, were found later scattered over the. entire 

 region from Cape Hecla to Lake Hazen, and westward along the north 

 Grant Land coast, over fifty specimens in all being secured" (/. c., p. 57). 

 Later in the season "hunting parties of the Eskimos were kept constantly 

 in the field, covering the country north to Clements Markham Inlet and 

 south to Wrangel Bay and Lake Hazen. The results of these parties were 

 satisfactory, considerable numbers of musk-oxen and reindeer being secured " 

 (I. c., p. 60). By October 1, the "game score reached seventy-three musk- 

 oxen and twenty-seven reindeer." Other bags, comprising reindeer as 

 well as musk-oxen, are reported as received October 25 and November 8. 

 Under date of December 16 it is stated (I. c., p. 84) : "Two large buck rein- 

 deer were found on the southern slopes of the United States Range with 

 their horns locked, frozen in a death struggle." 



1 This Bulletin, XXII, 1906, pp. 203-207, pll. xx-xxvi. 



