Eurychilina subradiata Ulrlch 



Fig. i6 Right valve, x lo. 



Glens Falls limestone. Canajoharie, Montgomery county^ N. Y. 



Technophorus cancellatus Ruedemann 

 Page 122 



Fig. 17 Right side of a somewhat imperfect carapace, retaining the surface 



sculpture, x 4. 

 Fig. 18 Cast of the interior of the right side retaining the undivided " beak/' 

 X 2. 

 Snake Hill beds. Snake hill, Saratoga county, N. Y 

 All originals are in the New York State Museum. 



142 



