THE NAUTILUS. 99 



Ensis directus Conr., abundant. 



Spisula solidissima Dillw., fairly common. 



Mulinia lateralis Say, scarce. 



Lyonsia hyalina Conr., scarce. 



Mya arenaria Linn., common. 



Busycon canaliculata Say, fairly common. 



Busycon carica Gmel., fairly common. 



Nassa trivittata Say, fairly common. 



Nassa obsoleta Say, very abundant. 



Nassa vibex Say, scarce. 



Astyris lunata Say, scarce. 



Eupleura caudata Say, scarce. 



Urosalpinx cinereus Say, common. 



Odostomia trifida Totten, scarce. 



Bittium nigrum Stimp, common. 



Litorina rudis Donov., common. 



Litorina littorea Linn., very common. 



Crepedula fornicata Linn., common. 



Crepedula plana Say, common. 



Crepedula convexa Say, scarce. 



Neverita duplicata Say, fairly common. 



Chaetopleura apiculata Say, scarce (usually on oysters). 



A LIST OF THE LAND SHELLS OF LEE COUNTY, FLORIDA. 



BY E. G. VANATTA. 



The following species were collected in Lee County, Florida, by 

 Mr. Clarence B. Moore. The smaller forms were picked from leaf- 

 mould sent in bags, each with the exact locality carefully marked 

 on it. 



Practically nothing has been known hitherto of the land-snail 

 fauna between Key Marco and Cape Florida, the Ten Thousand 

 Island region being accessible only to the collector cruising in his 

 own boat. 



It is interesting to note the occurrence of Bifidaria rhoadsi Pils. 

 and Vertigo variolosa Gld. on the west coast of Florida ; also that 

 many of the shells of Zonitoides minuscula Binn. have internal 



