514 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
original colors cannot be in the least discovered. The other, in better state, 
shows the characters pretty well. There is a strong fulvous or salmon- 
colored stripe along the whole body, just as in P. fasctatus. The light color 
of the upper parts is rather a pale cinnamon than the sandy yellowish of 
P. fasciatus. The hairs are light plumbeous at base, and many of them are 
tipped with black, giving the dark surface-lining. The tail is sharply bicolor, 
to correspond with the body. The under parts, including the whole fore leg 
and the foot and inside of the hind leg, are white. 
As in the case of P. monticola, further information respecting this species 
is much to be desired, particularly as there appear to be some Mexican ani- 
mals of this genus with which we are at present not well acquainted. The 
following measurements are those given by Baird in his original notice :— 
5 
TaBLE III.—Mecasurements of two specimens of PEROGNATHS HISPIDUS. 
. | 
“ From tip of nose to— eae end | Length of — a 
o i ‘ 'S 
2 - o 
q ! s o 
= Locality. g re) 3 oI ‘3 
ay Xs = ° S S 2 
a =] a2 “ B=} P=) *S 2 
i) a Oo nD a ist 
I . om = > & ) cz oo 3 
: Wie (oie tes. |e BS Bele I ati 
o n R RR oO A e | Jes] & | ise] ise] A 
| 
5i7 | Charco Escondido. ........-....-.---.------ Q | 0.64 | 0.93 | 1.33-| 3.12 |.-...-]..-... 0. 42 | 0.84 | 0.37 | Alcoholic, 
70h PLATA MOLAS soe<= seco e= ness daa sae eee oc | 0.67 | 1.00 | 1.33 | 3.50 | 3.60 | 3.80 | 0.45 | 0.92 | 0.37 |....do. 
In my previous “‘ Review ” of this family (Proc. Phila. Acad. 1875, 293), 
I quoted the original notice * of ““Abromys lordi” of Gray (P. Z. 8. 1868, 202), 
observing that ““we may suppose the animal to be a Perognathus, from the 
general tenor of Dr. Gray’s remarks, and his curiously mixed-up quotations ; 
and it is perhaps P. monticola. ....” This supposition is probably verified 
* The following is the original notice of the genus and species in full : — 
“3. ABROMYS, Gray. 
“Upper cutting teeth with a longitudinal groove; fur soft, abundant, uniform, long, and close. 
Tail tapering, cylindrical, covered with short hair almost hiding the rings of scales. 
“ Perognathus, sp., 8. Baird, Mamm. N. A. 423. 
“ABROMYS LORDI. B. M. 
“ Fur soft, abundant, gray-washed, with blackish tips; chin and under side of body whitish ; tail 
tapering, gray, with a blackish-brown upper surface and tip; hair of the back dark lead-color, with a 
short gray band and minute black tip. 
“Perognathus monticolor [sic], Lord, in B. M. 
“? Perognathus monticola, S. Baird, Mamm.N. A. 422, t. 51, f. 3 (skull). 
“ Hab. British Columbia (Zord). i 
“The teeth destroyed. Length of body and head 3 inches, of tail 3 inches. It differs from 
Dipodomys phillipsii and other species of that genus in haying no white spot over the eye at the base 
of the ear, or white band across the thigh.” 
