38 THE NAUTILUS. 



TruncateUidae. 



Truncatella caribeensis 'Sby' Rve. Rabbit Key, Monroe county; 

 Bahia, Honda Key, Key Largo, Big Pine Key, Sugar-loaf Key, 

 Key West. 



Truncatella bilabiata Pfr. Blue Hill Island near Goodland Point, 

 Key Marco, near Punta Rassa, Fakahatchee Key, Ten Thousand 

 Islands, Pavilion Key, Bahia Honda Key, Key Largo, Big Pine 

 Key, Sugar-loaf Key, Key "West. 



Truncatella sp. Sugar-loaf Key. 



Helicinidse. 



Helicina orbiculata Say. Little Palo Alto Key, Big Palo Alto 

 Key, Lignum Vitse Key, Snipe Key, Key West, Pineland, north- 

 west end of Pine Island, Fakahatchee Key in Ten Thousand Islands, 

 East Cape, Cape Sable, Little Pine Key. 



Helicina tantilla Pils. Duck Key and Grassy Key. Originally 

 described from Palm Beach, on the east coast. 



Helicidse. 



Cepolis varians Mke. South end of Key Biscayne, Cape Florida, 

 West end of Upper Matacumbe Key. 



Polygyra cereolus (Miihlf.). East end Lower Matacumbe Key; 

 Long Key ; Big Pine Key ; Little Pine Key ; Sugar-loaf Key at 

 Sugar-loaf Creek ; Boca Chica Key ; near Blind Pass, Middle Cape, 

 Cape Sable, and a small Key opposite Flamingo, in the same 

 region. 



Polygyra cereolus carpenteriana (Bid.). Western end of Upper 

 Matacumbe Key; Lignum Vita? Key; Summerland Key; Cudjoe 

 Key; Key West near Punta Rassa; Blue Hill Island near Good- 

 land Point, Key Marco ; Fakahatchee Key in the Ten Thousand 

 Islands; Turner Key; Rabbit Key; Pavilion Key. 



Polygyra uvidifera (Shuttlw.). Big Pine Key; Blue Hill Island 

 near Goodland Point, Key Marco ; Turner River, Turner Key ; 

 Middle Cape and East Cape, Cape Sable. 



Thysanophora selenina (Gld.). Big Pine Key; Blue Hill Island 

 near Goodland Point, Key Marco; Fakahatchee Key in the Ten 

 Thousand Islands. (Helix selenina G\d. =Helix vortex Pfr., preoc). 



Thysanophora plagioptycha (Shuttl.). Mainland at Middle Cape 

 Cape Sable ; Duck Key ; Big Pine Key. 



Thysanophora sp. undet. Little Pine Key. 



