PLATE 39 



la, lb. Strombus bltuberculatus Lamarck. Lake Worth, Florida. 3 inches, p. 108. 



2. Strombus gigas Linne. Lake Vtforth, Florida. 12 Inches, p. 108. 



S. Fasciolaria gigantea Kiener. Sanibel, Florida. 10 inches, p. 126. 



4. Strombus pugilis alatus Gmelin. Tertiary, Florida. p. 109. 



5. Aporrhais occidentalis malnensis Johnson. Maine. S.5 inches, p. 108. 



6. Same. Growth stages, p. 108. 



7. Strombus pugilis Linn§. Lake Vilorth, Florida. 4 Inches, p. 108. 



8. Aporrhais occidentalis Beck. Off Maine. 2.5 Inches, p. 107. 



