92 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
In many of our animals of wide distribution, there appear to be several races, as far as dimen¬ 
sions are concerned, in particular species ; skulls of the same relative age being different in 
size. This is particularly the case in the cats, racoons, hears, and deer, and, as a general rule, 
the further south we go, the smaller the species. This condition of things adds not a little to 
the confusion which prevails. The skulls vary much too with age, and probably also with sex, 
although the specimens before me not having the sex indicated do not afford the clue to the 
peculiarities of male or female. 
There appear to he at least three species of smaller American lynxes in North America^—the 
common Bay Lynx, which reaches from the Atlantic to the Pacific, throughout nearly the whole 
latitude of the United States, hut is replaced in Texas and southern California by the Lynx 
maculatus, and in northern Oregon and Washington Territory by the L. fasciatus. The precise 
limits of these last mentioned species, other than as indicated, has not yet been ascertained. 
The examination of a large number of well prepared specimens of different ages, sexes, 
seasons and localities, will, however, be necessary fully to unravel the perplexities which now 
encompass the whole subject. 
Measurements. 
1588. 
1167. 
Length of head and body_ 
28f 
27 
Tail ... 
7 
Heel to end of hind foot_,_ 
6£ 
Height at shoulder - -----___-___ 
151 
List of specimens. 
Catalog’e 
number. 
Correspond’g 
No. of skulls. 
Age& 
sex. 
Locality. 
When 
collected. 
Whence obtained. 
Nature of 
specimen 
Collected by 
1027 
2042 
1557 
245 
1630 
? 1165 
? 1649 
1824 
1845 
1846 
1844 
? 1588 
1589 
1167 
1209 
660 
169 
1385 
Carlisle, Pa_.____ 
S. F. Baird_ 
Skin.. 
3087 
Rowleysburg, Va_ 
A. Brakeley_ 
.do_ 
Selma, Ala____ 
Prof. A. Winchell_ 
St. John’s river, Fla_ 
W. Savery__ 
Brazos river, Texas_ 
Capt. R. B. Marcy_ 
Fort Chadbourne, Texas . . 
Dr. E. Swift. 
Fort Pierre, Neb_ 
Lt. G. K. Warren_ 
’ Dr.F.V.Hayden. 
_ do_ _ _ 
Great Bend of Missouri_ 
Oct. 10,1856 
_ ...do . 
2883 
Mouth of Big Sioux 
Oct. 28,1856 
Feb. 2, 1856 
do 
do 
9 
San Diego, Cal__ 
Dr. J. F. Hammond_ 
_do___ 
Santa Clara, Cal_ 
Nov. 1855 .. 
Dr. J. G. Cooper_ 
Presidio, near San Fran¬ 
cisco. 
Bodega, Cal.... 
Oregon_ 
Lt. W. P. Trowbridge . 
__do... 
Dr. J. Evans.._ 
1876 
9 
. - . 
. 
T. A. Szabo... 
Plum Spring, Towa __ _ 
B F Odell 
