16 THE NAUTII,CS. 



Punctum blandianum Pi Is. 



Pyramidula cumberlnndiana, Lea. Rarely at the southern end 

 of Monte Sano. This record, furnished by Smith, cancels the nega- 

 tive note in previous article. 



There is a variety of Pyramidula alternata, Say, which is quite 

 constant, distinguished principally by its sub-carinate contour, which 

 was collected on an isolated peak (Ward's Mountain ?) three miles 

 south west of Huntsville. 



Pyramidula sub-sp. nov. (Pilsbry). A splendid sub-species of 

 bryanti which has been described by Dr. Pilsbry, but not yet pub- 

 lished. Locality a dry ridge about 6 miles north of Monte Sano. 



iSuccinea avara Say. Reported by Clapp. 



Caryckium exiguum Say. " Associated with exile, H. C. Lea, 

 but rare and local." (Smith). 



LAND SHELLS OF SOUTHERN FLORIDA. 



BY E. G. VANATTA. 



This list is based upon shells picked from leaf-mould collected in 

 Florida by Messrs. Clarence B. Moore, H. A. Pilsbry, C. T. 

 Simpson, Stewardson Brown, H. W. Fowler, and J. S. Raybon. 



All are in the collection of the Academy of Natural Sciences. 



Many of the specimens of Truncatella bilabiata are a rather smooth 

 form parallel to T. c. succinea Ad. 



The typical Polygyra cereolus Mu'hl. were at first divided by size 

 from the var. carpenteriana Bid., but these two forms intergrade as 

 shown by the following count of specimens in a large series from two 

 localities. In a lot from Little Pine Key there are 46 Polygyra 

 cereolus measuring from 14.5 to 10.5 mm. ; 700 Polygyra c. 

 carpenteriana measuring 10.3 to 7.5 mm., and 40 measuring 8.3 to 

 7 mm. in diameter. 



From Big Pine Key at Robert Watson's place there are 12 P. 

 cereolus measuring 14.5 to 11 mm. in diameter; 1009 var. carpen- 

 teriana measuring 11.3 to 9 mm., and 16 from 9 to 7 mm. It will 

 be seen that no definite division can be made. Each of these lots 

 represents a single colony, the snails being scraped up with the dirt, 

 without selection, from under stones in an area of a square rod or 

 two. 



