MURIDAE—SIGMODONTES—HESPEROMYS LEUCOPUS. au 
TABLE XIV.— Measurements of about fifty (and list of other) specimens purporting to be HESPEROMYS “GAMBELL” 
from Washington and Oregon Territories and California—Continued. 
Nose to— | 
: = 
Locality. Collector. Same re : Es Remarks. 
3 Shue Aen 
ir rs] e z 2 z ‘s = re 
z elale@lalalealala 
7444 | Simiahmoo....--- --|'C. B. R. Kennerly-|..---.]---.-.].-.--- 3.25 | 3.40 }..... 0.80 | 0.62 | Alcoholic. 
5042 | Puget Sound SHUT ae 0.73 | 0.63 |.--.do. 
5049 | Steilacoom ......-..-- Ree 290) ee ae 0.75 | 0.62 }.-..do. 
9913 Sa00)| ene 0. 85 | 0.65 |.--.do. 
5033 Seth | eters 0.79 | 0.68 |-..-do. 
5034 27 BO) | sanem = 0.80 | 0.60 |..-.do. 
10138 Salted inniela'=l 0.80 | 0.60 |....do. 
10139 BUR I) ee 0,82 | 0.66 |.-- do. 
10140 3.160) |e-- <5. 0.84 | 0.72 |..-.do. 
10141 3075) Peo 0.90 | 0.68 | ...do. 
10142 BEGUN Saeco 0.75 | 0.65 |....do. 
10143 Sas = Bhs Ul Peeee 0.83 | 0.75 |... do. 
10144 |...... (0) eee CR eeetaate Rees Reeser ened sce sl esac el amor 3.40 | 4.00 |.-.--- 0.92 | 0.78 |..-.do. 
TAT3 Fort Tejon, Cal -....-- J. Xantus........ 0.46 | 0.79 | 1.07 | 2.90 | 2.60 | 0.33 ! 0.80 | 0.60 |....do. 
“a | 
UA) paleeosoe Ci eereace ene ess PERO aS SS Re ABaF Soocee pe nod bosccs| haem oe) boseed| pseoms Acme pocck= sens 
10175) 
10201 
to ae G0) cocdaccec cone NaaeC her ecco eeooee| Sessa Benes) peraes Mirete| Peeetec| sane lseme]losceon ===200; 
10227 
fi [Sone do SAS -eseg .--.| 0.55 | 0.93 | 1.20 | 3.60 | 2.70 | 0.35 | 0.83 | 0.66 |....do. 
7460) j\Ponoee OO se - see ete Case Oles seer 0.50 | 0.90 | 1.18 | 3.50 | 3.20 | 0.32 | 0.81 | 0.68 |....do. 
4921 |} Fort Umpqua, Oreg -..| E. P. Vollum*.....|-.....|---...|------ ) 3.40 | 4.40 |...-.. 0.92 | 0.67 |....do. 
10296 |...--- Cen eee coat = cetiesse0e A065 34) teecel hecces) testes 3.50 | 3.50 |-----. 0.8L | 0.67 |....do. 
10297 
to aoa (it) Saaes ss sesecct- See UOheeee= sesee ces eeee =| eeenne Fee el eect lleeen an eoeeem nea! eaeetae ===-0; 
10301 
* These specimens of Dr. Vollum’s bear out the remarks made under Dr. Kennerly’s. One of themis referable to * boylii”; 
the rest are apparently ‘* gambelii”’. 
The foregoing table is to be compared with the following items in the 
original diagnosis of “‘ gambeli” :—‘‘ Very similar to H. leucopus in size and pro- 
portions.” This is true, even without the qualification. “Feet perhaps shorter.” 
This is not so; the feet are wholly within the range of variation of eastern leuco- 
pus, and the average of the foregoing table is within an inappreciable fraction 
(0.01 or 0.02) of the eastern average. ‘“‘ Ears larger.” The largest ear in the 
series is not over the length of a large percentage of the eastern series ; all the 
ears are within the eastern limits of variation, and the average ear is within an 
inappreciable fraction (0.02 or 0.03) of the eastern average. “‘ Tail generally 
less than the head and body, sometimes a very little longer.” ‘This expression is 
precisely diagnostic of typical leucopus. ‘Above yellowish-brown, much mixed 
with dusky, but without a distinct broad wash of darker on the hack.” Most of 
the specimens really are paler and more uniform on the back than in average 
