Geographic Variation in Red-Backed Mice (Genus Clethrionomys) of the Southern Rocky Mountain Region
                        
                     
                                                         
                
                    Geographic Variation in Red-Backed Mice (Genus Clethrionomys) of the Southern Rocky Mountain Region
                                            
                            By E. Lendell Cockrum
                            
                                23 Nov, 2018                            
                            
                         
                                        
                                                                        In the course of the preparation of a synopsis of the North American terrestrial microtines by one of us (Cockrum), and the completion of a Master's thesis on the geographical variation of the red-backed mice of Wyoming by the other (Fitch) we had oc
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                                                In the course of the preparation of a synopsis of the North American terrestrial microtines by one of us (Cockrum), and the completion of a Master's thesis on the geographical variation of the red-backed mice of Wyoming by the other (Fitch) we had occasion to study the red-backed mice of the southern Rocky Mountain region (see figure 1). Results of these studies are the recognition of two heretofore unnamed subspecies of the red-backed mouse in the southern Rocky Mountain region, and a clarification of the taxonomic status of two additional kinds. Less