MURIDiB— ARVICOLIN^— EVOTOMYS RUTILUS. 



139 



Table XXXVI. — Measurements of nine skulls of A. rutilus, "gapperi", and "glarcola". 



Thus it appears that the differences between the Lapland and Massachu- 

 setts skulls are no greater than those discrepancies that occur in either, and 

 that all are largely within the limits of individual variation. A detailed 

 account of the skull, especially as regards dentition, will be found under 

 head of var. gapperi. We here tabulate our specimens of true rutilus, with 

 measurements.* 



Table XXXVII. — Measurements of sixty-seven (and list of other) specimens o/Evotomys rutilus from Asia, 



Europe, and North America. 



1463 

 1976 



404 

 405 

 3027 

 6921 

 8758 

 6930 

 5724 

 5725 

 5723 

 4563 

 6917 



Locality. 



Kamtschatka . 

 do 



Lapland 



do 



Nelson E., H. B. T. 



Big Island 



Fort Good Hope ... 



Fort Norman 



Fort Eae 



Arctic America- ... 



FortLiard 



do 



La Pierre House... 



Collector. 



Museum Berlin 



Museum St. Peters- 



burg. 

 Kongl. Svensk Ak . 



..do 



D. Gunn 



J.Eeid 



C. P. Gandet 



N. Taylor 



L. Clarke 



B.EEoss 



W. L. Hardisty.... 



A. McKenzie 



J.Flett 



0. 48 0. 90 

 0. 51 0. 99 



Nose to- 



Tail to- 



3.40 

 3.50 



0.95 



.5.60 

 3.50 

 4.00 

 3.10 

 3.50 

 3.60 



3.75 

 3.00 

 3.50 



081 

 001. 



. 30 0. 

 . 50 0. 



50 0. 



360. 



400. 



200. 



25U 



30 



25 



0.70 

 0.62 



0.40 

 0.41 



-in. 

 500. 



0.65 



0.65 



0.70 



32 0. 70 



30 0. 08 

 . . 0. 74 

 310.69 

 . 0.66 

 32 0. 68 



31 0. 68 

 36 0. 72 



11 II 



0.41 

 0.39 

 0.54 



Krlu.it ks 



Dry. 

 .. do. 



...do. 



...do. 



...do. 



Dry ; stretched. 



Dry. 



...do. 



...do. 



...do. 



...do. 



... do. 



...do. 



•About thirty other skins, collected by Esquimaux in the Anderson and Mackenzie River regions, 

 are prepared so wretchedly as to afford no data of size of the body, while the feet and tail are as with 

 the rest. They are therefore not introduced. Some of these skins measure upward of six inches in 

 length, a striking iustauce of the elasticity of the skins of these small mammals. 



