PLATE 4 



Noetla ponderosa Say. Sanibel, Florida. 2 inches, p. 28. 



Area barbata Linne. Lower Matecumbe Key, Florida. 1.5 Inches, p. 28. 



Area Candida Gulldlng. Yamato, Florida. 2-2.5 inches, p. 28. 



Area transversa Say. New England. 1.5 inches, p. 27. 



Paaope bitruncata Conrad. Florida tertiary. 5.25 inches, p. 68. 



Periploma undulata Verrill. Off Long Island, New York. 15 mm. p. 40. 



Montacuta florldana Dall. West Florida, p. 48. 



Area campechiensis Gmelin. Cameron, Louisiana. 1 inch. p. 26. 



1S8 



