MAMMALS —CANIDAE—VULPES LITTORALIS. 145 
off rapidly toa 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. 
2334, San Miguel. | 2345, San Miguel. 
| 
Inches and | Inches and 
100ths. | 100ths. 
otal, Jenethwesil) so. ig bee Pape sele Ae oste ces uee dondl oe 3. 86 1500 © 7 ts 48508 1.00 
OSES Se ee Se ae eae en eS ee ee 2.07 53/5 || 4 2520 .56 
Greatest Neieht — << 2 = 92 eet cee ee ea cca sesesmaspeeccs~ 1. 19 31 | 1. 26 .35 
Pintne COND LWeEN OLS, 35-5 52> tS ean Sine cn shee ne - 76 - 20 - 86 21 
Distance between points of orbital processes- .-.--------.------ pga: - 30 | 1. 26 32 
peummtcnaeticnets eae es oT Late Ak cri sv 1,18 .30 1. 20 30 
Nasal’ bones; width before 232.2222 AL Le eT +34 -09 | - 36 . 09 
Narrowest part of muzzle between incisors. -..--:---.--------- - 61 eHSVY . 4 - 65 . 16 
Upper incisors, from front to hinder margin of palate ~_-------- 1.91 49 i 2.00 «50 
Upper molars, length taken together be a ME ec 1.43 +37 | - 80 - 20 
Upper molars, distance; between ~~. .--=-2------s---+--<0--- 42 -10 ! - 50 -12 
eer jw Wenpth Wo. saa oc etcetant pe ealsa teat pcocame’ 3.40 . 88 2,93 74 
PEER iaw WRC bron Sas) «soe ah alee ae beeen soe 1. 42 237 1. 26 . 32 
_Between points of orbital processes to occiput -----.----------- 2.00 ook 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 _....-..--.-2---------2------- 1. 38 35 |] 4 .36 
| 
List of specimens. 
Catalogue | Corresponding Locality. Whence obtained. 
| Nature of specimen 
number. | No, of skull. 
} 
1351 2154 Island of San Miguel, off the coast | Lt. W. P. Trowbridge, U. S. A-_.- 
PRIN. ooo ase e = 
of California, 30 miles from Santa) 
1417 2274 “Barbara. : Da es eee eee Alcohol Ss2se5.e6= 
19 L 
