U. S. NATIONAL MUSEUM 



BULLETIN 100. VOL. 6. PART 9 PL. 102 



Copies of figures of shells upon which specific names were based and herein referred to Cochlostyla (Prochilus) 

 rirgata (Jay) (for detailed reference see pp. 458-459): 1, Bulinus syivanus Broderip, Cochlostijla (Proehilus) 

 pulchrior Pilsbry; 2, Cochlostyla (Proehilus) pulchrior Pilsbry; 3, Bulimus porraceus Jay; 4, Bulimus 

 virgatus Jay; 5, Bulinus syivanus Broderip; 6, Bulinus labnlla Grateloup; 7. Cochlostyla sylranoides 

 Semper; S. Bulimus calobaptus Jonas; 9, Bulinus syivanus Broderip; 10-12, Bulinus dryas Broderip. 



