Plate 9. 



Pafe-e. 



Fig. 1. Dentalium perlongum Dall. Selected type, 99 mm 75 



2. Dentalium meridionale meridionale Pilsbry. Type, 101 mm 61 



3. Dentalium meridionale verrilli, new name. Selected type, 82 mm 62 



4. Dentalium meridionale jamaicense, new subspecies. Type, 110 mn 62 



160 



