dextral shell
Webster's Dictionary (GCIDE)
Dextral shell (Zool.), a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer. [1913 Webster]
Dextral shell (Zool.), a spiral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer. [1913 Webster]