Template:Stickel, 1941

• Stickel, W.H. 1941. The subspecies of the spade-nosed snake, Sonora occipitalis. Bulletin of the Chicago Academy of Sciences 6(7): 135–140.  
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Nomenclatural acts

• Date of publication: 1941

New names (1)

• Sonora occipitalis klauberi [p. 138]