173 Beyrichia chaniuersi, S. A. Miller. 173 



174 Beyrichia ciliata, Emmons. 174 



175 Beyrichia cincinnatiensis, S. A. Miller. ■ 175 



176 Beyrichia oculifera, Hall. 176 



177 Beyrichia regularis, Emmons. 177 



178 Leperditia cylindrica, Hall. 178 





