THE NAUTILUS. 19 



Thysanophora seleriina GUI. t 



Thysanophora plagioptycha Shutt. 



Pupoides modicus Gld. 



Bifidaria p. hordeacella Pils. 



Bifidaria rupicola Say. 



Bifidaria contracta Say. 



Strobilops hubbardi Br. 



Euglandina rosea Fer. 



Vitrea dalliana ' Simps.' Pils. 



Guppya gundlachi Pfr. 



Zonitoides minuscula Binn. 



Zonitoides singleyana Pils. 



A SMALL KEY OPPOSITE Flamingo, Mouroe Co. Collected by 

 Clarence B. Moore. 



Polygyra c. carpenteriana Bid. 



Gilbert's, Lee Co. (near Matanzas Pass). Collected by Clar- 

 ence B. Moore. 



Bifidaria rupicola Say. 



Grass Key, Monroe Co. Collected by J. S. Raybon, 



Truncatella cariboeensis ' Sby ' Rve. 



Key West, Monroe Co. Collected by Dr. H. A. Pilsbry and C. 

 T. Simpson. 



Truncatella caribseensis ' Sby.' Rve. 

 Helicina o. dappi Pils. 

 Thysanophora incrustata Poey. 

 Thysanophora plagioptycha Shutt. 

 Polygyra cereolus Miililf. 

 Urocoptis poeyana variegata Ptr, 

 Microceramus pontificus Gld. 

 Pupoides modicus Gld. 

 Bifidaria p. hordeacella Pils. 

 Opeas gracile Hutt. 

 Opeas micra Orb. 

 Euglandina rosea minor Binn. 

 Varicella g. fioridana Pils. 

 Succinea campestris Say. 



Lignum Vit^e Key, Mouroe Co. Collected by Clarence B. 

 Moore. 



Helicina o. clappi Pils. 



