32 THE NAUTILUS. 



Bifidaria p. hordeacella Pils. 



Bifidiiria rupicola Say. 



Varicella g. floridana Pils. 



Vitrea dalliana ' Simp.' Pils. 



Guppya gundlachi Pfr. 



Succinea floridana Pils. 



Big Pine Key, Monroe Co. Collected by H. A. Pilsbry, C. T. 

 Simpson, S. Brown and H. W. Fowler. 



Truncatella cariba^ensis succinea Ad. 



Helicina o. clappi Pils. 



Helicina tantilla Pils. 



Thysanopliora incrustata Poey. 



Polygyra c. carpenteriana Bid. 



Urocoptis poeyana variegata Pfr. 



Microceramus pontificus Gld. 



Strobilops hubbardi Br. 



Pupoides modicus Gld. 



Bifidaria p. hordeacella Pils. 



Bifidaria rupicola Say. 



Vertigo variolosa Gld. 



Euglandina r. parallela Binn. 



Vitrea dalliana * Simps.' Pils. 



Guppya gundlachi Pfr. 



Zonitoides minuscula Binn. 



Succinea floridana Pils. 



Porpoise Point, Monroe Co. Part of a key. Collected by 

 Clarence B. Moore. 



Polygyra c. carpenteriana Bid. 



Bifidaria p. hordeacella Pils. 



Rabbit Key, Monroe Co. Collected by Clarence B. Moore. 



Truncatella bilabiata Pfr. 



Polygyra cereolus carpenteriana Bid. Many of the specimens 

 from this place lack the internal lamina. 



Bifidaria p. hordeacella Pils. 



Bifidaria rupicola Say. 



East Cape, Cape Sable, Monroe Co. Collected by Clarence 

 B. Moore. 



Helicina o. clappi Pils. 



