RODENTIA-LEPORIDAE-—LEPUS BACHMANI. 
607 
the yellowish brown, the dark brown being thus between two light bars, instead of a light and 
lead colored one. 
The skull of this species is intermediate in size and shape between those of sylvaticus and 
artemisia . It is less curved than in either, the horizontal crest of the upper part of the occipital 
region standing further from a horizontal plane. The post-orbital processes are fused behind 
with the cranium, enclosing a foramen instead of a notch. The character of the skull is 
entirely different from that of L. palustris. 
Measurement of a sJcull. 
Skull. 
Inches and 
lOOths. 
loeths of 
length. 
Total length to end of nasals.. 
Greatest width _ „_ 
2.68 
1. SO 
1. 00 
.48 
Distance between ante-orbital notches__ _ 
. 63 
.23 
Nasal bones, length____ 
1.15 
.43 
width behind__.._ 
. 50 
. 19 
before___ 
.34 
. 13 
Upper incisors from front to molars__._ 
.86 
.32 
hinder margin of the palate- 
height_ 
1 11 
.26 
.41 
. 09 
width between external edges_,_ 
.28 
. 10 
Upper molars, length taken together_ 
.50 
. 19 
distance between_ 
.40 
. 15 
Lower jaw, length __....._ 
2 15 
height_,__ 
1 26 
arc _ __ _ ___ 
2.15 
The identification of this species with the L. bachmani of Waterhouse is with some considerable 
degree of uncertainty, although the characters agree better than with any other before me. I 
had previously given this name to a widely different species ( L. audubonii) from California, 
chiefly on the ground of locality, although recognizing many differences. The locality of Cali¬ 
fornia, as given by Audubon and Bachman to Waterhouse’s specimen, isapparently very incorrect, 
as this author gives “ southwest portions of North America, perhaps California.” In another 
article, however, he speaks of a specimen of L. palustris as having been received in the same 
collection. This renders it much more probable that Texas was the “ southwest portion of 
North America” referred to, as the skin of L. palustris , described by G-ray under the name of 
L, douglassii, var. 2, was in all probability a portion of the Texas collections of Douglas. 
The specimen 234 agrees pretty well with Waterhouse’s measurements, allowing for rather 
larger dimensions, (Waterhouse suspected his animal to be rather immature.) The difference 
in the length of the ear is probably owing to the fact that his measurement was made from the 
extreme end of the cartilage, while mine is from the projection above the skin anteriorly. The 
character of having the fur on the back lead colored, then almost black, then with a subterminal 
