PLATE 3 



Area umbonata Lamarck. Florida Keys. 1.5 Inches, p. 27. 



Area incongrua Say. Wilbur, Florida. 2 inches, p. 27. 



Area adamsi E. A. Smith. Florida Keys. 12 mm. 



Area reticulata Gmelin. Florida Keys. 15 mm. 



Area sectlcostata Reeve. Sanibel, Florida. 3. 



Area chemnitzi Philippi. St. Thomas, W. I. 1. 



Area occidentalis Philippi. Sanibel, Florida. 



Area auriculata Lamarck. Bahamas. 40 mm. p. 



Mulinia lateralis nucleus Conrad. Connecticut. 



Mulinia lateralis corbuloides Desh. Mayport, Florida. 16 mm. p. 65. 



i 



