MAMMALS—MARTINAE—PUTORIUS LONGICAUDA. 
171 
Measurements. YbVb, Milk river, Nebraska. 
Fresh speci¬ 
mens. 
Skin. 
Head and body............___... 
Inches. 
11 
5* 
6f 
4 
4 
H' 
If 
n 
Inches. 
151 
5£ 
7 
Tail vertebras_......___ 
Tail to end of hairs___ 
Circumference of head at ears_:_ 
Circumference of throat under shoulders - - - 
Circumference of loins 
Fore arm to wrist...... . ____. ........_ 
Femur _ _ __ __ 
Tihia 
Longest claw of fore foot........_---------- 
i 
Af<r 
Distance between upper incisors, (outside)_____ 
Smaller specimens from the Missouri river and west differ from P. noveboracensis in a greater 
extent of the light color on the belly, and in having this of a very decided pale saffron yellow. 
The chin and under surface of the head, however, are white. The upper parts are lighter, and 
with a greenish tinge. Winter specimens are pure white, with black tip to the tail. 
Their general appearance is much the same with that of number 225, although they are 
smaller ; the shade of brown above, and other features, are very similar. There is nearly the 
same indistinctness in the line of separation between the colors of the hack and belly, the more 
yellowish tinge generally. The light color of the belly is considerably wider in all these than 
in P. noveboracensis. , 
If all the specimens of long tailed ermines from the Missouri region differ from the New 
York species, as I am inclined to suspect, then it is the more probable that they are the same 
with the Carlton House variety with long tail, referred to in Richardson’s Fauna Boreale- 
Americana, as quoted above. I have little doubt that the two large species I describe are 
different; should they prove the same, however, then Bonaparte’s name must he retained as 
having priority. 
List of specimens. 
Catalogue number, j 
Corresponding No. 
of skull. 
1 
Is 
m 
Locality. 
When 
collected. 
Whence obtained.l 
Original number. 
Nature of spe¬ 
cimen. 
From ti p of nose 
Tail to end of— 
Collected by— 
Oceip. 
Tail. 
Verteb. 
Hairs. 
225 
1873 
Milk river, Up. Mo. 
Aug., 1853 ... 
Gov. 1.1. Stevens.! 
Skin. _ T „.... 
Dr. Geo. Suckley. 
1878 
2576 
s 
Laramie river, Neb. 
Aug. 4, 1856 
Lt. F. T. Bryan... 
207 
...do . 
2.38 
10.60 
5.13 
5.70 
W. S. Wood..... 
1879 
2577 
s 
Aug. 5, 1856 
.do. 
210 
.. .do ....... 
2.38 
10.75 
5.75 
7 25 
.do. 
1756 
Long Lake, Neb.... 
Oct., 1856.... 
Lt. G. K. Warren. 
Dr. F. V. Hayden. 
1757 
Yellowstone.. „ 
Aug., 1856 ... 
.do_.,, 
_. do... 
? 1758 
Fort Clark, Neb.... 
Winter. 
.do . T _ 
Skin ; white 
? 1759 
1 
