THE BAHAMA ISLANDS 47 



PLATE XIII. 



FIG. 1. Helicina rawsoni Pfeiffer, base; 3/2. See p. 36. 



FIG. 2. Cepolis (Plagioptycha) inaguana Dall, base; 3/2. See p. 38. 



FIG. 3. Helicina rawsoni Pfeiffer, profile; 3/2. See p. 36. 



FIG. 4. Cepolis (Hemitrochus) exumana Dall, base; 3/2. See p. 37. 



FIG. 5. Cepolis (Plagioptycha) gregoriana Dall, base; 3/2. See p. 37. 



FIG. 6. Cepolis duclosiana variety columbiana Dall, base; 3/2. See p. 38. 



FIG. 7. Cepolis (Hemitrochus) exumana Dall; 3/2. See p. 37. 



FIG. 8. Cepolis (Plagioptycha) gregoriana Dall, profile; '3/2. See p. 37. 



FIG. 9. Cepolis duclosiana variety columbiana Dall, profile; 3/2. See p. 38. 



