>24 



MONOGRAPHS OF NORTH AMERICAN RODENTIA. 



the known range of the species, which has not hitherto 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 Arvicola, 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^ 



Table LVII. — Measurements of sixty- right specimens of Arvicola (Pitymys) pinetorcm. 



Nature of 

 specimen. 



10263 

 2836 

 10264 



7787 

 7786 

 4714 

 7566 

 10265 

 3230 

 2546 

 2547 

 2548 

 2545 

 2919 



m\ 



Dry 



Alcoholic 

 Dry 



..do 



..do 



..do 



Alcoholic 



Dry 



..do 



Alcoholic 



..do 



..<lo 



..do 



..do 



Dry 



Alcoholic . 

 Dry 



do. 



do . 



Date. 



Apr. 10, 



Nov. — , 1860 



Apr. 25, 1856 



Mar. — , 1855 



Mar. —,1855 

 Mar. — , 1855 



Locality. 



Southern States. . . 

 Sap Harhor, L. I . . 

 Long Island ? . . . . 



Suffolk Co., N. T. 



...do 



Pennsylvania 



Alleghany Co., Pa 

 Philadelphia, Pa . 

 ...do 



Carlisle, Pa 



...do 



...do 



...do 



Bladensburg, Md . . 



...do 



Washington, D. C 

 Clarke County, Va. 



...do 



...do 



Collector. 



E. N. Byrani . 

 J. LeConte. .. 



B. A. Merrit. . 



...do 



J. LeConte. .. 

 R. L. Wallace 

 J. Krider .... 

 W. S. Wood . . 

 D. Miller, jr . 

 ...do 



.no 



...do 



B. O. Lowndes 



...do 



» 



C B. R. Kvu. 

 nerlv. 



...do 



...do 



3.90 

 3.00 

 4.00 



4.00 

 3.90 

 3.99 



3.38 

 3.25 

 3.50 

 3.53 

 3.10 

 3.80 

 3. f.O 

 3. CO 



'3 ► 



0.65 

 0.82 

 0.75 



0.62 

 0.95 

 0.75 

 0.80 

 0.78 

 0.70 

 0.18 

 0.75 

 0.60 

 0.78 

 0.65 

 0.70 



0.70 

 0.70 



0.33 

 0.40 

 0.38 



0.36 

 0.36 

 0.35 

 0.38 

 0.35 



0.38 

 0.38 

 0.40 

 0.40 



0.36 

 0.40 

 0.38 



0.30 

 0.36 



to 



0.C2 

 0.65 

 0.63 



0.63 

 0.64 

 0.62 

 0.72 

 0.64 

 0.58 

 0.60 

 0.62 

 0.03 

 0.62 

 0.60 

 0.68 

 0.60 

 0.58 



0.60 

 0.62 



Remarks. 



Measured dry. 

 Measured in alcohol. 

 Type of " scalopsoi- 

 des " LeC 



Type"apella" LeC. 

 Measured in alcohol. 

 Measured dry. 



do. 



Measured iu alcohol. 



do. 



do. 



do. 



do. 



Measured dry. 

 Measured in alcohol, 

 Measured dry. 



.do. 

 .do. 



* His Neosho Falls Bespcromys, Oryzomys, Onychomys, and others, arc all larger, as prepared, than 

 usual, though the parts that do not change in drying are of ordinary dimensions. 



