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 Gullding. Yamato, Florida. 2-2.5 inches, p. 28. 



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



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



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



Montaeuta floridana Dall. West Florida, p. 48. 



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



