MAP s8— RANGE OF THE BLACK-BACKED SHREW. 

 Sorex richardsoni Bachman. 

 The outline is the theoretical range. The spots are the actual -cords as g.ven in C Haxt Mcmam's S^^opsis, with others made by John 

 Macoun in Saskatchewan, by E. T. Seton in Manitoba, and by E. A. Preble m Keewatm, and Mackenzie. 



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