Fig. 7. 



Fig. 5. 



Fig. 5, enlarged. Figs. 6 and 7, specimens from J. Dearness, Canada. 

 TYLOSTOMA CAMPESTRE. 



Fig. 9. 



Fig. 8. 

 Fig. 8, enlarged. Fig. 9, specimens from F. S. Earle, Alabama. 



TYLOSTOMA BERKELEYII. 



