142 THE NAUTILUS. 



sia county, Florida, differs as follows: Aperture similar to the preced- 

 ing, but anterior outline of the parietal wall more elevated, straighter, 

 less excavated in front of the parietal fold. Surface almost or quite 

 free from rib-striate below. Whorls 4 to 5. Alt. 4, greatest diam. 

 7 mm. Alt. 3^, greatest diam. 6i mm. 



Typical P. postelliana occurs in Glynn and Wayne counties, Georgia, 

 and South Carolina. I have not seen it from Florida. 



ISAAC LEA DEPARTMENT. 



[Conducted iii the interest of the Isaac Lea Conchological Chapter of the 

 gassiz Association, by its General .Secretary, Dr. W. S. .Strode.] 



A gassiz 



SHELLS OF LAKE WORTH, FLORIDA. 



[Extract from the report of J. J. White. From the Transactions of the Isaac 

 P-I i 'rmflinlnp-ifHl ('banter for 1898.1 



Lea Couchological Chapter for 1898.] 



Having had occasion to visit the soldiers stationed at Miami, in July 

 last. I could not let such an opportunity pass without profit! ng by 

 it. Heavy rains kept me within doors the greater part of the time. 

 When dry enough I was out in the woods skirting the town and was 

 amply repaid by finding large quantities of the beautiful Liguus fas- 

 ciatus Brug. These I found on trees, sometimes as high as twenty 

 feet from the ground. I had to procure a long pole to detach them 

 from trees, catching them in my hands, so as to prevent them from 

 breaking by falling on the rocks and roots of trees. I soon found that 

 I must have a safer way to collect them ; so I made a little basket of 

 twigs and bark, and attached it to the end of my pole, and found it to 

 work admirably. I soon collected all I thought I would need. While 

 sitting in the car, waiting for the train to start for Palm Beach, I 

 counted twenty-seven on the trees close by the station. 



During my stay of five weeks at Palni Beach and Lake Worth I 

 made a number of trips up to the new and old Lake Worth inlets, 

 which have been my favorite collecting grounds in years past. Finer 

 collecting grounds would be difficult to find on the Atlantic coast, and 

 those who visit them always come away well repaid. Lake Worth is 

 about the northern limit for the Strombus, except S. pugilis^ which is 

 sometimes found further northward. While stopping with W. E. 

 Spencer, of Lake Worth, he helped me make a water glass, which was 

 a great help in collecting. We took a small butter tub, and, after 

 taking out the bottom, we cut a sheet of window glass to fit in its place 



