681 U. Ss. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL KEPORT. 
the differences consist ; in fact, some authors, at this late date, attempt to prove that the two 
species are mere varieties of each other.* 
The American buffalo was formerly found throughout the entire eastern portion of the United 
States to the Atlantic ocean, and as far south as Florida. In the Hudson Bay country it did 
not pass east of the latitude of Red river; to the south it extended over the entire Mississippi 
valley, through Texas and into Mexico. 
At the present time its range is very different. The progress of civilization has crowded 
it off towards the west, until now it is never seen east of the Missouri, except in its northern 
portion. To the north, it is found in Minnesota and on Red river. The main range is, 
however, between the Upper Missouri and the Rocky Mountains, from Great Martin lake, lati- 
tude 64°, and the Saskatchewan, to northern Texas and New Mexico. In western Texas it 
is very seldom seen, nor do I know whetlier it is now found in Mexico at all. Of late years only, 
it has found its way through the Rocky Mountains to the upper plains of the Columbia. 
List of specimens. 
a S 
# |S 
Bless ae 
2 a Bo} @ Locality. When collected.| Whence and how obtained. Nature of specimen. 
s a w 
yA eg ee ee | Fort Union -----.--------|-------------- Ed. T. Denig and A. Culbertson_.| Head ---------..- 
2009 | 2843 | o@ Yellowstone -.----------- August, 1856 |«Lieutenant G. K. Warren------- Skint. === 
2007 | 2841] Q_ |..---- dite Slee api ese PPS ey arsine, § Be id 3! ae) Set ne dora tL aaa 
2008 | 2842 | od eee o (ae arr pans tase ESE Eee Gee —a=n| eee eae does a ases ene eee dos. 264seeeeeeee 
2010 | 2844 | of |---.-- Os eee ts ee ae ae too Gijza se. |e ance ci ed Close cect desc = Skin (four months.) 
2006 | 2840 | ¢ White Earth River-------- Sept. 8, 1856 |---------. (Os sa desea grtccccoe Skin... eee 
ZO11 | 2845 | ¢ Fort: Berthold. --..---...- July 8, 1856 |--------.- Gl) ns sas Sega SSeS Head -.<--2 seem 
2012 | 2846 | Q |-.---- doses sane s ie ten eee a | eee CORR Se bae ae se GbR ses See te se5 Sates |e 0-2 eee 
1829" (eo s2. fo) RortiBierree.sas2-—= j= 2-2 -|----2--------- Mir AtKINSON.==—-a52— cease eee Spotted skin ~-.... 
1 Jager, Wiitemburgische naturwissenschaftliche Jahreshefte, III, 176-203. 
