PLATE 2 
EXPLANATION OF FIGURES 
Pelvis of pocket gopher (Geomys bursarius), open type. Lateral view 
Pelvis of meadow mouse (Microtus pennsylvanicus). Ventral view. X 3. 
Pelvis of meadow mouse (Microtus pennsylvanicus). Lateral view. X 3. 
Pelvis of house mouse (Mus musculus). Ventral view. X 4. 
Pelvis of house mouse (Mus musculus). Lateral view. X 4. 
Pelvis of shrew (Sorex sp.). Ventral view. X 52. 
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