by William Swainson

“ The Ear-shells are strangely characterized by their peculiarity of form, perforated holes, and rich pearly interior. They are found in both temperate and tropical seas; but the definitions hitherto given by conchologists are so imperfect, that they have left our knowledge of these shells nearly the same now, as in the time of Linnæus. Seventeen species only are enumerated in Mr. ”