MAMMALS —CANI DAE- 
-VULPES LITTOR ALIS. 
145 
off rapidly to a point. The intermaxillary is applied along their anterior half, the frontal along 
the posterior third of the outer edge. The temporal ridges are sufficiently distinct. The 
anterior portion of the frontal bone is considerably swollen above the eyes, these elevations 
separated by a deep depression along the median line and ceasing a little posterior to the centre 
of the orbit. The lateral profile shows a depression in the upper outline of the skull at this 
point. 
An appreciable peculiarity of this species is seen in the anterior base of the zygoma. The 
suture of this shows no bifurcation of the malar at all, but merely a broad emargination, with 
irregular or zig-zag outline. The bone is produced forwards, inwards, and upwards as a narrow 
process, which occupies not one-third the space between the edge of the orbit and the ante-orbital 
foramen. In the gray fox the space thus occupied is nearly or quite half this distance, sometimes 
a little more. 
Measurements of skulls. 
• 
i JU, San Miguel. 
fHr, San Miguel. 
Inches and 
lOOths. 
Inches and 
lOOths. 
Total length_____ 
3.86 
1.00 
3. 93 
1.00 
Greatest width.- -... 
2. 07 
.53 
2 . 20 
.56 
Greatest height_____ 
1. 19 
.31 
1 . 26 
.35 
Distance between orbits___ 
.76 
.20 
.86 
.21 
Distance between points of orbital processes. ...... 
1 . 18 
.30 
1 . 26 
. 32 
Nasal bones, length .. 
1 , 18 
.30 
1 . 20 
.30 
Nasal bones, width before ....... 
.34 
.09 
.36 
. 09 
Narrowest part of muzzle between incisors........ 
. 61 
. 15 
. 65 
. 16 
Upper incisors, from front to hinder margin of palate .. 
1. 91 
.49 
2 . 00 
.50 
Upper molars, length taken together...... 
1.43 
.37 
.80 
.20 
Upper molars, distance between_ 
.42 
. 10 
.50 
. 12 
Lower jaw, length____ 
3.40 
. 88 
2. 93 
.74 
Lower jaw, height____ 
1.42 
.37 
1 . 26 
.32 
Between points of orbital processes to occiput___ 
2.00 
.51 
2. 05 
.52 
Between points of orbital processes to end of nasals ... 
1.77 
.45 
1.70 
.43 
Between points of orbital processes to intermaxillaries_ 
2 . 10 
.54 
2.12 
.53 
Orbit to end of intermaxillary_______ 
1.38 
.35 
1.44 
.36 
List of specimens. 
Catalogue 
number. 
Corresponding 
No. of skull. 
Locality. 
Whence obtained. 
Nature of specimen. 
1351 
2154 
Island of San Miguel, off the coast 
Lt. W. P. Trowbridge, U. S. A_ 
Skin. 
of California, 30 miles from Santa 
1417 
2274 
Barbara. 
do _ _ 
Aloohol 
! 
19 L 
