134 Bulletin Wisconsin Natural History Society. [Vol. 8, No. 3. 



fore, for the present at least, follow Jordan's suggestion, and call 

 them Corevonus richardsouii. 



I say "for the present," because in my mind the specific separa- 

 tion of the forms chipeaformis, albus, richardsonii, and nelsoni, is 

 a matter much in doubt, and not to be finally settled except by the 

 accurate study of many specimens from each of many localities. 

 Zoological Laboratory, 



University of Wisconsin, 

 May 27, 1910. 



