78 Bulletin 12 306 



Platyceras herzeri Winch.? 



Rare. Crab Orchard, Ky. 



Platyceras indianense M. and G x 



Charlestown (M. and G). 



Platyceras infundibulum M. and W. , 8 



Knobstone, Washington county, Harri- 

 son county. 



Platyceras milleri Nettleroth 



Falls of the Ohio (Nettleroth). 



Platyceras lodense Meek , 



Rare. Parksville, Ky. 



*Platy ceras multispinosum Meek x 



Falls of the Ohio (Nettleroth). 



Platyceras quinquesinuatum (Ulrich) x 



Falls of the Ohio (Ulrich). 



Platyceras ricftum Hall x 



Clark county (Nettleroth). 



Platyceras serratum Ulrich x 



Falls of the Ohio (Ulrich). 



^Platyceras subundatum Conrad x 



Falls of the Ohio. 



Platyceras symmetricum Hall x 



Clark county (Nettleroth). 



^Platyceras thetis Hall x 



Falls of the Ohio, Charlestown (Nettle- 

 roth. 



Platyceras uncum Meek and Worthen, 8 



Knobstone, Harrison county. 



*Platyceras ventricosuni Conrad x 



Clark county (Nettleroth). 



Platystoma lineatum Hall x 



Rare. Clark county (Nettleroth), Lan- 

 caster, Falls of the Ohio, Brooks, Ky. 



Platystoma lineatum var. callosum Hall.... x 

 Clark county (Nettleroth), Kent, Ind. 



