540 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
peculiar tawny or fulvous of the genus, deepened somewhat on a dorsal area 
with mouse-brown. ; 
These are simply observed matters of fact, not open to question. Cer- 
tain differences which actually exist, as well as the insensible blending of these 
differences, may both be fairly signalized by the following formule of nomen- 
clature and description, in which the various names which have been proposed 
are relegated to their proper place, covering diagnosis of typical (@. e. extreme) 
characters, and indication of the region in which such form more especially 
prevails ; — 
DIPODOMYS PHILLIPSI,* Gray. 
Phillips’s Pocket-rat ; “‘Kangaroo Rat”. 
Dipodomys phillipii, Gray, Ann. Mag. N. H. vii, 1841,521; Rep. Brit. Assoc. Ady. Sci. for 1841, 1842, Trans. 
of the Sections, 70, Real del Monte, Mex. (Type of genus.)—WaGn., “Suppl. Schreb. iii, 
1843, 205.” —LEC., Proce. Acad. Nat, Sci. Phila. vi, 1853, 224. (Sacramento Valley, Cal.)—Guxrn., 
Sting. 1855, 600. (Compiled.)—Barrp, M. N, A, 1857, 412. (California, &c.)—Coop. & SUCKL., 
P.R. R. Rep. xii, 1859, Mamm. 100, 127, 
Dipodomys phillipsii, Gray, Am. Journ. Sci. xlii, 1842, 335; List. Mamm. Br. Mus, 1843, 120.—Grrr., Cat. 
Bones Br. Mus. 1862, 173.—Gray, Proce. Zo6], Soc, 1868, 200. 
Dipodomys philippi, SCHINZ, Syn. Mam. ii, 1845, 93. (Compiled from Gray.) 
Dipodomys phillippsii, AuD. & Bacu., Q. N. A. iii, 1853, 137, pl. 130. (From Gray’s type.) 
Dipodomys phillippii, Bauzp, P. R. R. Rep. x, 1859, Williamwson’s Route, Mamm. 82. (Posa Creek, Cala.) 
Dipodomys phillipsi, Cours, Proc. Phila, Acad. 1875, 325. : 
Macrocolus halticus, WaGNrR, Arch. f. Naturg. 1846, 176 ; “Abh. K. Baier. Akad. xxii, 1848, 319, p]. vii”.— 
GIEBEL, Siiug. 1855, 599. (Compuiled.) 
Dipodomys agilis, GAMB., Proc. Acad. Nat. Sei. Phila. iv, 1848, 77.t (Los Angeles, Cal.)—Gamp., Ann. Mag. 
Nat. Hist. iii, 1849, 318 (same).—LeC., Proc. Acad. Nat. Sci. Phila. vi, 1853, 224.—Aup. & 
Bacu., Quad. N. A. iii, 1854, 339. (Compiled.)—Grern., Siing. 1855, 600. (Compiled.)—Bp., 
Proc. Acad. Nat. Sci, Phila, 1855, 334 (San Diego, Cal.) ; M. N. A. 1857, 414, pl. 9, f. 1.—Gnay, 
P. Z.S. 1868, 201. : 
Dipodomys heermanni, LeEC., Proc. Acad. Nat. Sci. Phila. 1853, 224. (Sierra Nevada.) 
Dipodomys heermannii, BAIRD, Mamm. N. Am. 1857, 415. (Compiled.) 
Dipodomys hermannii, Gray, P. Z. 8. 1868, 201. (Compiled.) 
Dipodomys wagneri,t LEC., Proc. Acad. Nat. Sci. Phila. 1853, 224.—Bp., M. N. i 1857, 415. (Compiled.)— 
Gray, P. Z. S. 1868, 201. (Compiled.) 
Haxrrat.—Pacific region at large, from Washington Territory to Cape 
St. Lucas; Nevada; and portions of Mexico (Real del Monte, Phillips). 
Specimens examined from Fort Walla-Walla, Cape St. Lucas, and numerous 
localities nearly throughout Upper and Lower California. 
*This name is found variously spelled by authors, as well as by Gray himself ; but if, as stated by 
Gray, the species was named after John Phillips, the rendition here adopted appears to be correct. 
t Special paper: Description of Two New Californian Quadrupeds [D.agilis and Mus californi- 
ens}. < tom. cit. pp. 77,78. (Also, Ann. Mag. Nat. Hist. tom. cit. pp. 318, 319, with some literal modifica- 
tion of title.) 
{ The ascribed locality is unquestionably erroneous. The label “James Reed, South Carolina”, 
like that on some other specimens of various animals I have seen, indicates the donor and his residence. 
