286 



INDEX TO CER10N. 



Regium Bs. 

 Regula Mayn. . 

 Ritchie! Mayn. . . 

 Robusta Mayn. . 

 Rubicundum Mke. 

 Rubra Humph. . 

 Rude Pfr. 



Saccharimeta Bl. 



Sagraianum Pfr. 



Sallei P. & V. . 



Sanzi Bianes 



Sarcostomum P. & V. 



Scalarinum Gundl. 



Scalaris Pfr. 



Scripta Mayn. . 



Sculptum Poey . 



Seniculus Mayn. 



Smithii Bianes . 



Stevensoni Dall 



Striata Schum . 



Striatella (Helix) Fer. 



Striatella Humph. 



Striatella Klist. . 



Striatella v. minor Kiist. 



Slriatellum Dall & Simp. 



Striatellum < Fer ' Guer. 



Strobilus Beck . 



Strophia Alb. . 



STHOPHIOPS Dall, 179, 181, 231 



Sublavigatum Pfr. . .213 



Submarmoratum P. & V. . 270 



Sueyrasi Bl. . . 222 



Yumaense P. & V. . 

 Zebra Weinl. Sowb. . 



227 

 232 



200 

 257 

 207 

 257 



280 



277 

 209 



219 



281 

 274 

 180 



215 

 236 

 252 

 255 

 274 

 215 

 203 

 281 

 219 



237 

 238 



194 

 253 



