224 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
the known range of the species, which has not hitnerto been reported west 
of the Mississippi, if we except one or two Missouri specimens, as No. 3130. 
From Mr. Goss’ collection, we judge that the animal is not rare in Kansas. 
Two of his specimens are the largest we ever saw, exceeding four inches; 
but they seem to be somewhat overstuffed, as other skins of Mr. Goss’ cer- 
tainly are.* As evidence of the distensibility of the fresh skin of this and 
other Arvicole, we may instance No. 8139, from Kansas, whose length we do 
not include in the table, since it surpasses five inches as prepared, though, 
apparently, the animal was under four. Both Mr. Goss’ large skins are 
females; males of his from the same locality are, if anything, a little below 
the average size. Dr. Palmer's Fort Cobb examples, not noticeable in any 
other respect, carry the known range of the species still farther westward ; 
while, finally, No. 3732, from Oregon, takes it to the Pacific. This one, 
secured by the United States Exploring Expedition, probably by Mr. T. R. 
Peale, has been long in the collection, but seems to have been overlooked, 
owing to the circumstance that it stands labeled by a curious blunder 
“ Arvicola occidentalis”, to which it bears a slight resemblance in color alone. 
Taste LVII.—Measurements of sixty-eight specimens of ARVICOLA (PITYMYS) PINETORUM. 
os | 
3 Saul EEE EEE EN Collector. E | e = ‘ Remarks. 
Bal eae ce 
10263 | gf | Dry..----- Apr. 10, —] Southern States. ..|........----.--.| 3.90 | 0.65 | 0.33 | 0.62 | Measured dry. 
2836 |....| Alcoholic .|.....-..-.----- Sag Harbor, L.I ..| E.N. Byram ..| 3.00 | 0.82 | 0.40 | 0.65 | Measured in alcohol. 
10264 |....| Dry-...-..]..-....:------ Long Island?. . ..| J. LeConte....} 4.00 | 0.75 | 0.38 | 0.63 | Type of “ scalopsoi- 
F des” LeC. 
Zifl=7h| bat acl) Socoed MaRSseereee= ss Suffolk Co., N. Y..| B. A. Merrit...| 3.75 | 0.71 | 0.36 | 0,63 
Ti86 |... do ee OO) eme ee ees soni sssasn ood ocaecs) |sasa0s5 0.36 | 0.64 
AF Sole dO. caves Pennsylvania ..... J. LeConte....| 4.00 | 0.62 | 0.35 | 0.62 | Type “‘apel!a” LeC. 
7366 |....| Alcoholic Alleghany Co., Pa.| R. L. Wallace .| 3.90 | 0.95 | 0.38 |.0.72 | Measured in alcohol. 
10265 Philadelphia, Pa -.| J. Krider -..-. 3.99 | 0.75 | 0.35 | 0.64 | Measured dry. 
3230 nepdiMicicte sec =o09 W.S. Wood .--|..-... 0. 80 |.----- 0.58 |.----- do. 
2546 Carlisle, Pa....-.. D. Miller, jr -.| 3.38 | 0.78 | 0.38 | 0.60 | Measured in alcohol. 
2547 | echlta secre coscecc .-=s0 ..--.----| 3.25 | 0.70 | 0.38) | 0.62 }------ do. 
2548 pect) cecbacoceser +---0 3.50 | 0.78 | 0.40 | 0.63 |.----- do. 
2045 Beal Nicereconcese ...do 3.53 | 0.75 | 0.40 | 0.62 }.----- do 
2919 Bladensburg, Md..| B. O. Lowndes.| 3.10 | 0. 60 |.----- 0.60 |.----- do. 
$344 Bre Oy eceeaee ee ce te ccd ee evnad 3.80 | 0.78 | 0.36 | 0.68 | Measured dry. 
7583 Washington, D.C eee 3.60 | 0.65 | 0.40 | 0.60 | Measured in alcohol. 
Bi os Mar. —, 1855 | Clarke County, Va.| C. B. R. Ken-| 3.60 | 0.70 | 0.38 | 0.58 | Measured dry. 
nerly. 
(of | Pec eecose Mar. —, 1855 |....do ..--. secoann? Ja5 400 ese s con | eoeaiee 0.70 | 0.30 | 0.60.|.----. do. 
B= doy. cers. IMar’—1e5a|- 2-10 aeeseatnceee = OOM sae eee 3.50 | 0.70 | 0.36 | 0.62 |..-.-- do. | 
*His Neosho Falls Hesperomys, Oryzomys, Onychomys, and others, are all larger, as prepared, than 
usual, though the parts that do not change in drying are of ordinary dimensions. 
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